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Murillo-Saich JD, Coras R, Ramirez J, Quesada-Masachs E, Sala-Climent M, Eschelbach K, Mahony CB, Celis R, Armando A, Quehenberger O, Croft AP, Kavanaugh A, Chang E, Cañete JD, Singh A, Guma M. Synovial 5-Lipoxygenase-Derived Oxylipins Define a Lympho-Myeloid-Enriched Synovium. Arthritis Rheumatol 2024; 76:1230-1242. [PMID: 38508862 PMCID: PMC11288786 DOI: 10.1002/art.42848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 02/11/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
OBJECTIVE Oxylipins are bioactive lipids derived from polyunsaturated fatty acids (PUFAs) that modulate inflammation and may remain overexpressed in refractory synovitis. In plasma, they could also be biomarkers of synovial pathology. The aim of this study is to determine if synovial oxylipins in inflamed joints correlate with plasma oxylipins and with synovial histologic patterns. METHODS Patients with established rheumatoid or psoriatic arthritis with active disease despite treatment were recruited, and paired synovial tissue (ST) and plasma were collected. Oxylipins were determined by liquid chromatography with tandem mass spectrometry and were classified into groups according to their PUFA precursor and enzyme. The expression of CD20, CD68, CD3, and CD138 was obtained to describe synovial histology. Cell-specific expression of oxylipin-related genes was identified by examining available synovial single-cell RNA sequencing data. RESULTS We included a total of 32 ST and 26 paired-plasma samples. A total of 71 oxylipins were identified in ST, but only 24 were identified in plasma. Only levels of 9,10-dihydroxyoctadecenoic acid and tetranor-Prostaglandin FM had a significant positive correlation between plasma and ST. Several oxylipins and oxylipin-related genes were differentially expressed among synovial phenotypes. Specifically, several 5-lipoxygenase (LOX)-derived oxylipins were statistically elevated in the lympho-myeloid phenotype and associated with B cell expression in rheumatoid arthritis samples. CONCLUSION The lack of correlation between ST and plasma oxylipins suggests that ST lipid profiling better characterizes active pathways in treated joints. Synovial 5-LOX-derived oxylipins were highly expressed in lympho-myeloid-enriched synovium. Combination therapy with 5-LOX inhibitors to improve refractory inflammation may be needed in patients with this histologic group.
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Affiliation(s)
- Jessica D. Murillo-Saich
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093
| | - Roxana Coras
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093
| | - Julio Ramirez
- Arthritis Unit, Rheumatology Department, Hospital Clinic and IDIBAPS, Barcelona, Spain
| | | | - Marta Sala-Climent
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093
| | | | - Christopher B Mahony
- Rheumatology Research Group, Institute of Inflammation and Ageing, Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK
| | - Raquel Celis
- Arthritis Unit, Rheumatology Department, Hospital Clinic and IDIBAPS, Barcelona, Spain
| | - Aaron Armando
- VA San Diego Healthcare System, 3350 La Jolla Village Dr. San Diego, CA 92161, USA
| | - Oswald Quehenberger
- VA San Diego Healthcare System, 3350 La Jolla Village Dr. San Diego, CA 92161, USA
| | - Adam P Croft
- Rheumatology Research Group, Institute of Inflammation and Ageing, Queen Elizabeth Hospital, University of Birmingham, Birmingham, UK
| | - Arthur Kavanaugh
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093
| | - Eric Chang
- Department of Radiology School of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093
| | - Juan D. Cañete
- Arthritis Unit, Rheumatology Department, Hospital Clinic and IDIBAPS, Barcelona, Spain
| | - Abha Singh
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093
| | - Monica Guma
- Department of Medicine, University of California, San Diego, 9500 Gilman Drive, San Diego, CA 92093
- VA San Diego Healthcare System, 3350 La Jolla Village Dr. San Diego, CA 92161, USA
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Geng S, Zhang Y, Lu R, Irimia D, Li L. Resolving neutrophils through genetic deletion of TRAM attenuate atherosclerosis pathogenesis. iScience 2024; 27:110097. [PMID: 38883832 PMCID: PMC11179630 DOI: 10.1016/j.isci.2024.110097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/23/2024] [Accepted: 05/21/2024] [Indexed: 06/18/2024] Open
Abstract
Systemic neutrophil dysregulation contributes to atherosclerosis pathogenesis, and restoring neutrophil homeostasis may be beneficial for treating atherosclerosis. Herein, we report that a homeostatic resolving subset of neutrophils exists in mice and humans characterized by the low expression of TRAM, correlated with reduced expression of inflammatory mediators (leukotriene B4 [LTB4] and elastase) and elevated expression of anti-inflammatory resolving mediators (resolvin D1 [RvD1] and CD200R). TRAM-deficient neutrophils can potently improve vascular integrity and suppress atherosclerosis pathogenesis when adoptively transfused into recipient atherosclerotic animals. Mechanistically, we show that TRAM deficiency correlates with reduced expression of 5-lipoxygenase (LOX5) activating protein (LOX5AP), dislodges nuclear localization of LOX5, and switches the lipid mediator secretion from pro-inflammatory LTB4 to pro-resolving RvD1. TRAM also serves as a stress sensor of oxidized low-density lipoprotein (oxLDL) and/or free cholesterol and triggers inflammatory signaling processes that facilitate elastase release. Together, our study defines a unique neutrophil population characterized by reduced TRAM, capable of homeostatic resolution and treatment of atherosclerosis.
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Affiliation(s)
- Shuo Geng
- Department of Biological Sciences, Virginia Tech, Blacksburg VA 24061, USA
| | - Yao Zhang
- Department of Biological Sciences, Virginia Tech, Blacksburg VA 24061, USA
| | - Ran Lu
- Department of Biological Sciences, Virginia Tech, Blacksburg VA 24061, USA
| | - Daniel Irimia
- Center for Engineering in Medicine & Surgery, Massachusetts General Hospital, Harvard Medical School, Shriners Burns Hospital, Boston, MA 02114, USA
| | - Liwu Li
- Department of Biological Sciences, Virginia Tech, Blacksburg VA 24061, USA
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Golenkina EA, Viryasova GM, Galkina SI, Iakushkina IV, Gaponova TV, Romanova YM, Sud’ina GF. ATP and Formyl Peptides Facilitate Chemoattractant Leukotriene-B4 Synthesis and Drive Calcium Fluxes, Which May Contribute to Neutrophil Swarming at Sites of Cell Damage and Pathogens Invasion. Biomedicines 2024; 12:1184. [PMID: 38927391 PMCID: PMC11201259 DOI: 10.3390/biomedicines12061184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/16/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024] Open
Abstract
Here, we demonstrate that human neutrophil interaction with the bacterium Salmonella typhimurium fuels leukotriene B4 synthesis induced by the chemoattractant fMLP. In this work, we found that extracellular ATP (eATP), the amount of which increases sharply during tissue damage, can effectively regulate fMLP-induced leukotriene B4 synthesis. The vector of influence strongly depends on the particular stage of sequential stimulation of neutrophils by bacteria and on the stage at which fMLP purinergic signaling occurs. Activation of 5-lipoxygenase (5-LOX), key enzyme of leukotriene biosynthesis, depends on an increase in the cytosolic concentration of Ca2+. We demonstrate that eATP treatment prior to fMLP, by markedly reducing the amplitude of the fMLP-induced Ca2+ transient jump, inhibits leukotriene synthesis. At the same time, when added with or shortly after fMLP, eATP effectively potentiates arachidonic acid metabolism, including by Ca2+ fluxes stimulation. Flufenamic acid, glibenclamide, and calmodulin antagonist R24571, all of which block calcium signaling in different ways, all suppressed 5-LOX product synthesis in our experimental model, indicating the dominance of calcium-mediated mechanisms in eATP regulatory potential. Investigation into the adhesive properties of neutrophils revealed the formation of cell clusters when adding fMLP to neutrophils exposed to the bacterium Salmonella typhimurium. eATP added simultaneously with fMLP supported neutrophil polarization and clustering. A cell-derived chemoattractant such as leukotriene B4 plays a crucial role in the recruitment of additional neutrophils to the foci of tissue damage or pathogen invasion, and eATP, through the dynamics of changes in [Ca2+]i, plays an important decisive role in fMLP-induced leukotrienes synthesis during neutrophil interactions with the bacterium Salmonella typhimurium.
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Affiliation(s)
- Ekaterina A. Golenkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119234 Moscow, Russia; (E.A.G.); (G.M.V.); (S.I.G.); (I.V.I.)
| | - Galina M. Viryasova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119234 Moscow, Russia; (E.A.G.); (G.M.V.); (S.I.G.); (I.V.I.)
| | - Svetlana I. Galkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119234 Moscow, Russia; (E.A.G.); (G.M.V.); (S.I.G.); (I.V.I.)
| | - Iuliia V. Iakushkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119234 Moscow, Russia; (E.A.G.); (G.M.V.); (S.I.G.); (I.V.I.)
| | - Tatjana V. Gaponova
- National Research Center for Hematology, Russia Federation Ministry of Public Health, 125167 Moscow, Russia;
| | - Yulia M. Romanova
- Department of Genetics and Molecular Biology, Gamaleya National Research Centre of Epidemiology and Microbiology, 123098 Moscow, Russia;
| | - Galina F. Sud’ina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, 119234 Moscow, Russia; (E.A.G.); (G.M.V.); (S.I.G.); (I.V.I.)
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Cao X, Guo H, Dai Y, Jiang G, Liu W, Li X, Zhang D, Huang Y, Wang X, Hua H, Wang J, Chen K, Chi C, Liu H. Excessive linoleic acid induces muscle oxidative stress through 5-lipoxygenase-dependent peroxidation. Redox Biol 2024; 71:103096. [PMID: 38387137 PMCID: PMC10899062 DOI: 10.1016/j.redox.2024.103096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 02/18/2024] [Accepted: 02/18/2024] [Indexed: 02/24/2024] Open
Abstract
Oxidative stress in muscles is closely related to the occurrence of insulin resistance, muscle weakness and atrophy, age-related sarcopenia, and cancer. Aldehydes, a primary oxidation intermediate of polyunsaturated fatty acids, have been proven to be an important trigger for oxidative stress. However, the potential role of linoleic acid (LA) as a donor for volatile aldehydes to trigger oxidative stress has not been reported. Here, we reported that excessive dietary LA caused muscle redox imbalance and volatile aldehydes containing hexanal, 2-hexenal, and nonanal were the main metabolites leading to oxidative stress. Importantly, we identified 5-lipoxygenase (5-LOX) as a key enzyme mediating LA peroxidation in crustaceans for the first time. The inhibition of 5-LOX significantly suppressed the content of aldehydes produced by excessive LA. Mechanistically, the activation of the cyclic adenosine monophosphate (cAMP)-protein kinase A (PKA) pathway facilitated the translocation of 5-LOX from the nucleus to the cytoplasm, where 5-LOX oxidized LA, leading to oxidative stress through the generation of aldehydes. This study suggests that 5-LOX is a potential target to prevent the production of harmful aldehydes.
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Affiliation(s)
- Xiufei Cao
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Huixing Guo
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Yongjun Dai
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Guangzhen Jiang
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China.
| | - Wenbin Liu
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China.
| | - Xiangfei Li
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Dingdong Zhang
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Yangyang Huang
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Xi Wang
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Haokun Hua
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Jianfeng Wang
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Keke Chen
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Cheng Chi
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
| | - Hengtong Liu
- Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, National Experimental Teaching Center for Animal Science, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, 210095, Nanjing, Jiangsu, People's Republic of China
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Kotlyarov S. Identification of Important Genes Associated with the Development of Atherosclerosis. Curr Gene Ther 2024; 24:29-45. [PMID: 36999180 DOI: 10.2174/1566523223666230330091241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2022] [Revised: 12/06/2022] [Accepted: 01/26/2023] [Indexed: 04/01/2023]
Abstract
Atherosclerosis is one of the most important medical problems due to its prevalence and significant contribution to the structure of temporary and permanent disability and mortality. Atherosclerosis is a complex chain of events occurring in the vascular wall over many years. Disorders of lipid metabolism, inflammation, and impaired hemodynamics are important mechanisms of atherogenesis. A growing body of evidence strengthens the understanding of the role of genetic and epigenetic factors in individual predisposition and development of atherosclerosis and its clinical outcomes. In addition, hemodynamic changes, lipid metabolism abnormalities, and inflammation are closely related and have many overlapping links in regulation. A better study of these mechanisms may improve the quality of diagnosis and management of such patients.
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Affiliation(s)
- Stanislav Kotlyarov
- Department of Nursing, Ryazan State Medical University Named After Academician I.P. Pavlov, Russian Federation
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6
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Li W, Xia Y, Yang J, Sanyal AJ, Shah VH, Chalasani NP, Yu Q. Disrupted balance between pro-inflammatory lipid mediators and anti-inflammatory specialized pro-resolving mediators is linked to hyperinflammation in patients with alcoholic hepatitis. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.12.15.23300034. [PMID: 38168393 PMCID: PMC10760266 DOI: 10.1101/2023.12.15.23300034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
Background Chronic excessive alcohol consumption leads to a spectrum of alcohol-associated liver diseases (ALD), including alcoholic hepatitis (AH). AH is characterized by intense systemic and liver inflammation, posing significant risks of health complications and mortality. While inflammation is a crucial defense mechanism against injury and infection, its timely resolution is essential to prevent tissue damage and restore tissue homeostasis. The resolution of inflammation is an actively regulated process, primarily governed by specialized pro-resolving mediators (SPMs), lipid metabolites derived from ω-6 and ω-3 poly-unsaturated fatty acids (PUFAs). We investigated the balance between pro-inflammatory lipid mediators (PLMs) and SPMs in the ω-6 and ω-3 PUFA metabolic pathways and examined the impact of alcohol abstinence on rectifying the dysregulated biosynthesis of PLMs and SPMs in AH patients. Methods LC-MS/MS and ELISA were used to quantify levels of bioactive lipid mediators (LMs) and their precursors in the plasma samples from 58 AH patients, 29 heavy drinkers without overt liver diseases (HDCs), and 35 healthy controls (HCs). Subsequently, we assessed correlations of altered LMs with clinical parameters and various markers of inflammatory cascade andmicrobial translocation. Furthermore, we conducted a longitudinal study to track changes in levels of LMs over 6- and 12-month follow-ups in AH patients who underwent alcohol abstinence. Results AH patients exhibited significantly higher plasma levels of ω-6 PLMs (PGD 2 and LTB 4 ) and SPM RvE1 compared to HDCs and/or HCs. Conversely, key SPMs such as LXA4, RvD1, and several precursors in the ω-3 pathway were significantly downregulated in AH patients. Some of these altered LMs were found to correlate with AH disease severity, clinical parameters, and various inflammatory cytokines. In particular, the LTB4/LXA4 ratio was substantially elevated in AH patients relative to HDCs and HCs. This altered ratio displayed a positive correlation with the MELD score, suggesting its potential utility as an indicator of disease severity in AH patients. Importantly, the majority of dysregulated LMs, particularly PLMs, were normalized following alcohol abstinence. Conclusion Our study reveals significant dysregulation in the levels of PLM metabolites and anti-inflammatory SPMs in both ω-6 and ω-3 PUFA pathways in AH patients. This disrupted biosynthesis, characterized by an overabundance of PLMs and a deficiency in SPMs, is linked to the heightened inflammation observed in AH patients. Importantly, our findings suggest an important role of alcohol abstinence in restoring the balance of these LMs and the potential therapeutic benefits of SPM supplements in alleviating the inflammatory cascade in AH patients.
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Aguirre GA, Goulart MR, Dalli J, Kocher HM. Arachidonate 15-lipoxygenase-mediated production of Resolvin D5 n-3 DPA abrogates pancreatic stellate cell-induced cancer cell invasion. Front Immunol 2023; 14:1248547. [PMID: 38035115 PMCID: PMC10687150 DOI: 10.3389/fimmu.2023.1248547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 10/26/2023] [Indexed: 12/02/2023] Open
Abstract
Activation of pancreatic stellate cells (PSCs) to cancer-associated fibroblasts (CAFs) is responsible for the extensive desmoplastic reaction observed in PDAC stroma: a key driver of pancreatic ductal adenocarcinoma (PDAC) chemoresistance leading to poor prognosis. Specialized pro-resolving mediators (SPMs) are prime modulators of inflammation and its resolution, traditionally thought to be produced by immune cells. Using liquid chromatography-tandem mass spectrometry (LC-MS/MS)-based lipid mediator profiling PSCs as well as primary human CAFs express enzymes and receptors to produce and respond to SPMs. Human PSC/CAF SPM secretion profile can be modulated by rendering these cells activated [transforming growth factor beta (TGF-β)] or quiescent [all-trans retinoic acid (ATRA)]. ATRA-induced nuclear translocation of arachidonate-15-lipoxygenase (ALOX15) was linked to increased production of n-3 docosapentaenoic acid-derived Resolvin D5 (RvD5n-3 DPA), among other SPMs. Inhibition of RvD5n-3 DPA formation increases cancer cell invasion, whereas addback of this molecule reduced activated PSC-mediated cancer cell invasion. We also observed that circulating concentrations of RvD5n-3 DPA levels were decreased in peripheral blood of metastatic PDAC patients when compared with those measured in plasma of non-metastatic PDAC patients. Together, these findings indicate that RvD5n-3 DPA may regulate cancer-stroma cross-talk and invasion.
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Affiliation(s)
- Gabriel A. Aguirre
- Centre for Tumour Biology, Barts Cancer Institute, London, United Kingdom
| | | | | | - Jesmond Dalli
- William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, John Vane Science Centre, Queen Mary University of London, London, United Kingdom
| | - Hemant M. Kocher
- Centre for Tumour Biology, Barts Cancer Institute, London, United Kingdom
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Morandini L, Avery D, Angeles B, Winston P, Martin RK, Donahue HJ, Olivares-Navarrete R. Reduction of neutrophil extracellular traps accelerates inflammatory resolution and increases bone formation on titanium implants. Acta Biomater 2023; 166:670-684. [PMID: 37187302 PMCID: PMC10330750 DOI: 10.1016/j.actbio.2023.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/17/2023]
Abstract
Neutrophils are the most abundant immune cells in the blood and the first cells to be recruited to the biomaterial implantation site. Neutrophils are fundamental in recruiting mononuclear leukocytes to mount an immune response at the injury site. Neutrophils exert significant pro-inflammatory effects through the release of cytokines and chemokines, degranulation and release of myeloperoxidase (MPO) and neutrophil elastase (NE), and the production of large DNA-based networks called neutrophil extracellular traps (NETs). Neutrophils are initially recruited and activated by cytokines and pathogen- and damage-associated molecular patterns, but little is known about how the physicochemical composition of the biomaterial affects their activation. This study aimed to understand how ablating neutrophil mediators (MPO, NE, NETs) affected macrophage phenotype in vitro and osseointegration in vivo. We discovered that NET formation is a crucial mediator of pro-inflammatory macrophage activation, and inhibition of NET formation significantly suppresses macrophage pro-inflammatory phenotype. Furthermore, reducing NET formation accelerated the inflammatory phase of healing and produced greater bone formation around the implanted biomaterial, suggesting that NETs are essential regulators of biomaterial integration. Our findings emphasize the importance of the neutrophil response to implanted biomaterials and highlight innate immune cells' regulation and amplification signaling during the initiation and resolution of the inflammatory phase of biomaterial integration. STATEMENT OF SIGNIFICANCE: Neutrophils are the most abundant immune cells in blood and are the first to be recruited to the injury/implantation site where they exert significant pro-inflammatory effects. This study aimed to understand how ablating neutrophil mediators affected macrophage phenotype in vitro and bone apposition in vivo. We found that NET formation is a crucial mediator of pro-inflammatory macrophage activation. Reducing NET formation accelerated the inflammatory phase of healing and produced greater appositional bone formation around the implanted biomaterial, suggesting that NETs are essential regulators of biomaterial integration.
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Affiliation(s)
- Lais Morandini
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Derek Avery
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Benjamin Angeles
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Paul Winston
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Rebecca K Martin
- Department of Microbiology and Immunology, School of Medicine, Virginia Commonwealth University, Richmond, VA, United States
| | - Henry J Donahue
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States
| | - Rene Olivares-Navarrete
- Department of Biomedical Engineering, College of Engineering, Virginia Commonwealth University, Richmond, VA, United States.
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Haeggström JZ, Newcomer ME. Structures of Leukotriene Biosynthetic Enzymes and Development of New Therapeutics. Annu Rev Pharmacol Toxicol 2023; 63:407-428. [PMID: 36130059 DOI: 10.1146/annurev-pharmtox-051921-085014] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Leukotrienes are potent immune-regulating lipid mediators with patho-genic roles in inflammatory and allergic diseases, particularly asthma. These autacoids also contribute to low-grade inflammation, a hallmark of cardiovascular, neurodegenerative, metabolic, and tumor diseases. Biosynthesis of leukotrienes involves release and oxidative metabolism of arachidonic acid and proceeds via a set of cytosolic and integral membrane enzymes that are typically expressed by cells of the innate immune system. In activated cells, these enzymes traffic and assemble at the endoplasmic and perinuclear membrane, together comprising a biosynthetic complex. Here we describe recent advances in our molecular understanding of the protein components of the leukotriene-synthesizing enzyme machinery and also briefly touch upon the leukotriene receptors. Moreover, we discuss emerging opportunities for pharmacological intervention and development of new therapeutics.
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Affiliation(s)
- Jesper Z Haeggström
- Department of Medical Biochemistry and Biophysics, Division of Chemistry 2, Karolinska Institutet, Stockholm, Sweden;
| | - Marcia E Newcomer
- Department of Biological Sciences, Louisiana State University, Baton Rouge, Louisiana, USA;
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10
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Kotlyarov S. Genetic and Epigenetic Regulation of Lipoxygenase Pathways and Reverse Cholesterol Transport in Atherogenesis. Genes (Basel) 2022; 13:1474. [PMID: 36011386 PMCID: PMC9408222 DOI: 10.3390/genes13081474] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 11/16/2022] Open
Abstract
Atherosclerosis is one of the most important medical and social problems of modern society. Atherosclerosis causes a large number of hospitalizations, disability, and mortality. A considerable amount of evidence suggests that inflammation is one of the key links in the pathogenesis of atherosclerosis. Inflammation in the vascular wall has extensive cross-linkages with lipid metabolism, and lipid mediators act as a central link in the regulation of inflammation in the vascular wall. Data on the role of genetics and epigenetic factors in the development of atherosclerosis are of great interest. A growing body of evidence is strengthening the understanding of the significance of gene polymorphism, as well as gene expression dysregulation involved in cross-links between lipid metabolism and the innate immune system. A better understanding of the genetic basis and molecular mechanisms of disease pathogenesis is an important step towards solving the problems of its early diagnosis and treatment.
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Affiliation(s)
- Stanislav Kotlyarov
- Department of Nursing, Ryazan State Medical University, 390026 Ryazan, Russia
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11
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Saado I, Chia KS, Betz R, Alcântara A, Pettkó-Szandtner A, Navarrete F, D'Auria JC, Kolomiets MV, Melzer M, Feussner I, Djamei A. Effector-mediated relocalization of a maize lipoxygenase protein triggers susceptibility to Ustilago maydis. THE PLANT CELL 2022; 34:2785-2805. [PMID: 35512341 PMCID: PMC9252493 DOI: 10.1093/plcell/koac105] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 02/17/2022] [Indexed: 05/07/2023]
Abstract
As the gall-inducing smut fungus Ustilago maydis colonizes maize (Zea mays) plants, it secretes a complex effector blend that suppresses host defense responses, including production of reactive oxygen species (ROS) and redirects host metabolism to facilitate colonization. We show that the U. maydis effector ROS burst interfering protein 1 (Rip1), which is involved in pathogen-associated molecular pattern (PAMP)-triggered suppression of host immunity, is functionally conserved in several other monocot-infecting smut fungi. We also have identified a conserved C-terminal motif essential for Rip1-mediated PAMP-triggered suppression of the ROS burst. The maize susceptibility factor lipoxygenase 3 (Zmlox3) bound by Rip1 was relocalized to the nucleus, leading to partial suppression of the ROS burst. Relocalization was independent of its enzymatic activity, revealing a distinct function for ZmLox3. Most importantly, whereas Zmlox3 maize mutant plants showed increased resistance to U. maydis wild-type strains, rip1 deletion strains infecting the Zmlox3 mutant overcame this effect. This could indicate that Rip1-triggered host resistance depends on ZmLox3 to be suppressed and that lox3 mutation-based resistance of maize to U. maydis requires functional Rip1. Together, our results reveal that Rip1 acts in several cellular compartments to suppress immunity and that targeting of ZmLox3 by Rip1 is responsible for the suppression of Rip1-dependent reduced susceptibility of maize to U. maydis.
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Affiliation(s)
- Indira Saado
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences (OEAW), Vienna BioCenter 7(VBC),Vienna 1030, Austria
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Stadt Seeland D-06466, Germany
| | - Khong-Sam Chia
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences (OEAW), Vienna BioCenter 7(VBC),Vienna 1030, Austria
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Stadt Seeland D-06466, Germany
| | - Ruben Betz
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences (OEAW), Vienna BioCenter 7(VBC),Vienna 1030, Austria
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Stadt Seeland D-06466, Germany
| | - André Alcântara
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences (OEAW), Vienna BioCenter 7(VBC),Vienna 1030, Austria
| | | | - Fernando Navarrete
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences (OEAW), Vienna BioCenter 7(VBC),Vienna 1030, Austria
| | - John C D'Auria
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Stadt Seeland D-06466, Germany
| | | | - Michael Melzer
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Stadt Seeland D-06466, Germany
| | - Ivo Feussner
- Department of Plant Biochemistry, University of Göttingen, Albrecht-von-Haller Institute for Plant Sciences and Goettingen Center for Molecular Biosciences (GZMB), Göttingen 37077, Germany
| | - Armin Djamei
- Gregor Mendel Institute (GMI), Austrian Academy of Sciences (OEAW), Vienna BioCenter 7(VBC),Vienna 1030, Austria
- Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Stadt Seeland D-06466, Germany
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12
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Kotlyarov S, Kotlyarova A. Molecular Pharmacology of Inflammation Resolution in Atherosclerosis. Int J Mol Sci 2022; 23:ijms23094808. [PMID: 35563200 PMCID: PMC9104781 DOI: 10.3390/ijms23094808] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/18/2022] [Accepted: 04/25/2022] [Indexed: 02/01/2023] Open
Abstract
Atherosclerosis is one of the most important problems of modern medicine as it is the leading cause of hospitalizations, disability, and mortality. The key role in the development and progression of atherosclerosis is the imbalance between the activation of inflammation in the vascular wall and the mechanisms of its control. The resolution of inflammation is the most important physiological mechanism that is impaired in atherosclerosis. The resolution of inflammation has complex, not fully known mechanisms, in which lipid mediators derived from polyunsaturated fatty acids (PUFAs) play an important role. Specialized pro-resolving mediators (SPMs) represent a group of substances that carry out inflammation resolution and may play an important role in the pathogenesis of atherosclerosis. SPMs include lipoxins, resolvins, maresins, and protectins, which are formed from PUFAs and regulate many processes related to the active resolution of inflammation. Given the physiological importance of these substances, studies examining the possibility of pharmacological effects on inflammation resolution are of interest.
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Affiliation(s)
- Stanislav Kotlyarov
- Department of Nursing, Ryazan State Medical University, 390026 Ryazan, Russia
- Correspondence:
| | - Anna Kotlyarova
- Department of Pharmacology and Pharmacy, Ryazan State Medical University, 390026 Ryazan, Russia;
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13
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Mihlan M, Glaser KM, Epple MW, Lämmermann T. Neutrophils: Amoeboid Migration and Swarming Dynamics in Tissues. Front Cell Dev Biol 2022; 10:871789. [PMID: 35478973 PMCID: PMC9038224 DOI: 10.3389/fcell.2022.871789] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 03/03/2022] [Indexed: 01/02/2023] Open
Abstract
Neutrophils are key cells of our innate immune response with essential roles for eliminating bacteria and fungi from tissues. They are also the prototype of an amoeboid migrating leukocyte. As one of the first blood-recruited immune cell types during inflammation and infection, these cells can invade almost any tissue compartment. Once in the tissue, neutrophils undergo rapid shape changes and migrate at speeds higher than most other immune cells. They move in a substrate-independent manner in interstitial spaces and do not follow predetermined tissue paths. Instead, neutrophil navigation is largely shaped by the chemokine and chemoattractant milieu around them. This highlights the decisive role of attractant-sensing G-protein coupled receptors (GPCRs) and downstream molecular pathways for controlling amoeboid neutrophil movement in tissues. A diverse repertoire of cell-surface expressed GPCRs makes neutrophils the perfect sentinel cell type to sense and detect danger-associated signals released from wounds, inflamed interstitium, dying cells, complement factors or directly from tissue-invading microbes. Moreover, neutrophils release attractants themselves, which allows communication and coordination between individual cells of a neutrophil population. GPCR-mediated positive feedback mechanisms were shown to underlie neutrophil swarming, a population response that amplifies the recruitment of amoeboid migrating neutrophils to sites of tissue injury and infection. Here we discuss recent findings and current concepts that counteract excessive neutrophil accumulation and swarm formation. In particular, we will focus on negative feedback control mechanisms that terminate neutrophil swarming to maintain the delicate balance between tissue surveillance, host protection and tissue destruction.
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Affiliation(s)
- Michael Mihlan
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Katharina M. Glaser
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
- International Max Planck Research School for Immunobiology, Epigenetics and Metabolism (IMPRS-IEM), Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Maximilian W. Epple
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
- International Max Planck Research School for Immunobiology, Epigenetics and Metabolism (IMPRS-IEM), Freiburg, Germany
- Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Tim Lämmermann
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
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14
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Golenkina EA, Galkina SI, Pletjushkina O, Chernyak B, Gaponova TV, Romanova YM, Sud'ina GF. Gram-Negative Bacteria Salmonella typhimurium Boost Leukotriene Synthesis Induced by Chemoattractant fMLP to Stimulate Neutrophil Swarming. Front Pharmacol 2022; 12:814113. [PMID: 35058789 PMCID: PMC8764451 DOI: 10.3389/fphar.2021.814113] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Accepted: 12/13/2021] [Indexed: 01/17/2023] Open
Abstract
Leukotriene synthesis in neutrophils is critical for host survival during infection. In particular, leukotriene B4 (LTB4) is a powerful neutrophil chemoattractant that plays a crucial role in neutrophil swarming. In this work, we demonstrated that preincubation of human neutrophils with Salmonella typhimurium strongly stimulated LTB4 production induced by the bacterial chemoattractant, peptide N-formyl-L-methionyl-L-leucyl-l-phenylalanine (fMLP), while the reverse sequence of additions was ineffective. Preincubation with bacterial lipopolysaccharide or yeast polysaccharide zymosan particles gives weaker effect on fMLP-induced LTB4 production. Activation of 5-lipoxygenase (5-LOX), a key enzyme in leukotrienes biosynthesis, depends on rise of cytosolic concentration of Ca2+ and on translocation of the enzyme to the nuclear membrane. Both processes were stimulated by S. typhimurium. With an increase in the bacteria:neutrophil ratio, the transformation of LTB4 to ω-OH-LTB4 was suppressed, which further supported increased concentration of LTB4. These data indicate that in neutrophils gathered around bacterial clusters, LTB4 production is stimulated and at the same time its transformation is suppressed, which promotes neutrophil swarming and elimination of pathogens simultaneously.
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Affiliation(s)
- Ekaterina A Golenkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Svetlana I Galkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Olga Pletjushkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Boris Chernyak
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Tatjana V Gaponova
- National Research Center for Hematology, Russia Federation Ministry of Public Health, Moscow, Russia
| | - Yulia M Romanova
- Gamaleya National Research Centre of Epidemiology and Microbiology, Moscow, Russia
| | - Galina F Sud'ina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
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15
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Lin Y, Cai Q, Chen Y, Shi T, Liu W, Mao L, Deng B, Ying Z, Gao Y, Luo H, Yang X, Huang X, Shi Y, He R. CAFs shape myeloid-derived suppressor cells to promote stemness of intrahepatic cholangiocarcinoma through 5-lipoxygenase. Hepatology 2022; 75:28-42. [PMID: 34387870 DOI: 10.1002/hep.32099] [Citation(s) in RCA: 84] [Impact Index Per Article: 42.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Revised: 07/16/2021] [Accepted: 08/02/2021] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND AIMS We previously demonstrated that cancer-associated fibroblasts (CAFs) promote tumor growth through recruitment of myeloid-derived suppressor cells (MDSCs). 5-lipoxygenase (5-LO) is highly expressed in myeloid cells and is critical for synthesizing leukotriene B4 (LTB4), which is involved in tumor progression by activating its receptor leukotriene B4 receptor type 2 (BLT2). In this study, we investigated whether and how CAFs regulate MDSC function to enhance cancer stemness, the driving force of the cancer aggressiveness and chemotherapy refractoriness, in highly desmoplastic intrahepatic cholangiocarcinoma (ICC). APPROACH AND RESULTS RNA-sequencing analysis revealed enriched metabolic pathways but decreased inflammatory pathways in cancer MDSCs compared with blood MDSCs from patients with ICC. Co-injection of ICC patient-derived CAFs promoted cancer stemness in an orthotopic ICC model, which was blunted by MDSC depletion. Conditioned media (CM) from CAF-educated MDSCs drastically promoted tumorsphere formation efficiency and stemness marker gene expression in ICC cells. CAF-CM stimulation increased expression and activity of 5-LO in MDSCs, while 5-LO inhibitor impaired the stemness-enhancing capacity of MDSCs in vitro and in vivo. Furthermore, IL-6 and IL-33 primarily expressed by CAFs mediated hyperactivated 5-LO metabolism in MDSCs. We identified the LTB4-BLT2 axis as the critical downstream metabolite signaling of 5-LO in promoting cancer stemness, as treatment with LTB4 was elevated in CAF-educated MDSCs, or blockade of BLT2 (which was preferentially expressed in stem-like ICC cells) significantly reduced stemness-enhancing effects of CAF-educated MDSCs. Finally, BLT2 blockade augmented chemotherapeutic efficacy in ICC patient-derived xenograft models. CONCLUSIONS Our study reveals a role for CAFs in orchestrating the optimal cancer stemness-enhancing microenvironment by educating MDSCs, and suggests the 5-LO/LTB4-BLT2 axis as promising therapeutic targets for ICC chemoresistance by targeting cancer stemness.
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Affiliation(s)
- Yuli Lin
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Qian Cai
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yu Chen
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Tiancong Shi
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Weiren Liu
- Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Shanghai, China
| | - Li Mao
- Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Shanghai, China
| | - Bo Deng
- Division of Nephrology, School of Medicine, Shanghai Ninth People's Hospital, Shanghai Jiaotong University, Shanghai, China
| | - Zhen Ying
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Yuan Gao
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Haoyang Luo
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Xuguang Yang
- Department of Oncology, Cancer Institute, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaowu Huang
- Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Shanghai, China
| | - Yinghong Shi
- Key Laboratory of Carcinogenesis and Cancer Invasion of Ministry of Education, Department of Liver Surgery, Liver Cancer Institute, Zhongshan Hospital, Shanghai, China
| | - Rui He
- Department of Immunology and Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, School of Basic Medical Sciences, Fudan University, Shanghai, China.,National Clinical Research Center for Aging and Medicine, Huashan Hospital, Fudan University, Shanghai, China
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16
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Gerges SH, El-Kadi AOS. Sex differences in eicosanoid formation and metabolism: A possible mediator of sex discrepancies in cardiovascular diseases. Pharmacol Ther 2021; 234:108046. [PMID: 34808133 DOI: 10.1016/j.pharmthera.2021.108046] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 11/07/2021] [Accepted: 11/16/2021] [Indexed: 12/14/2022]
Abstract
Arachidonic acid is metabolized by cyclooxygenase, lipoxygenase, and cytochrome P450 enzymes to produce prostaglandins, leukotrienes, epoxyeicosatrienoic acids (EETs), and hydroxyeicosatetraenoic acids (HETEs), along with other eicosanoids. Eicosanoids have important physiological and pathological roles in the body, including the cardiovascular system. Evidence from several experimental and clinical studies indicates differences in eicosanoid levels, as well as in the activity or expression levels of their synthesizing and metabolizing enzymes between males and females. In addition, there is a clear state of gender specificity in cardiovascular diseases (CVD), which tend to be more common in men compared to women, and their risk increases significantly in postmenopausal women compared to younger women. This could be largely attributed to sex hormones, as androgens exert detrimental effects on the heart and blood vessels, whereas estrogen exhibits cardioprotective effects. Many of androgen and estrogen effects on the cardiovascular system are mediated by eicosanoids. For example, androgens increase the levels of cardiotoxic eicosanoids like 20-HETE, while estrogens increase the levels of cardioprotective EETs. Thus, sex differences in eicosanoid levels in the cardiovascular system could be an important underlying mechanism for the different effects of sex hormones and the differences in CVD between males and females. Understanding the role of eicosanoids in these differences can help improve the management of CVD.
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Affiliation(s)
- Samar H Gerges
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada
| | - Ayman O S El-Kadi
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada.
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17
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Apoptotic cell-derived metabolites in efferocytosis-mediated resolution of inflammation. Cytokine Growth Factor Rev 2021; 62:42-53. [PMID: 34742632 DOI: 10.1016/j.cytogfr.2021.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 10/13/2021] [Indexed: 12/21/2022]
Abstract
The resolution of inflammation, as part of standard host defense mechanism, is the process to guarantee timely termination of inflammatory responses and eventual restoration of tissue homeostasis . It is mainly achieved via efferocytosis, during which pro-resolving macrophages clear apoptotic neutrophils at the inflammatory site. Unfortunately, impaired resolution can be the leading cause of chronic inflammatory disorders and some autoimmune diseases. Existing studies have provided relatively comprehensive understandings about the recognition and uptake of apoptotic neutrophils by macrophages during early phases of efferocytosis. However, lack of information concerns macrophage metabolism of apoptotic cell-derived metabolites after being released from phagolysosomes or the relationship between such metabolism and efferocytosis. Notwithstanding, three recent studies have revealed macrophage metabolism of cholesterol, fatty acids and arginine, as well as their respective functions in the context of inflammation-resolution. This review provides an overview of the resolution of inflammation, efferocytosis and the key players involved, followed by a focus on the metabolism of apoptotic cell-derived metabolites within efferocytes. Hypotheses of more potential apoptotic cell-derived metabolites and their possible roles in the resolution are also formulated. Understanding the effect of these metabolites further advances the concept that apoptotic cells act as active players to regulate resolution, and also suggests novel therapeutic strategies for diseases driven by defective resolution and even cancer that may be treated through enhanced efferocytosis.
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18
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Liu M, Yan M, He J, Lv H, Chen Z, Peng L, Cai W, Yao F, Chen C, Shi L, Zhang K, Zhang X, Wang DW, Wang L, Zhu Y, Ai D. Macrophage MST1/2 Disruption Impairs Post-Infarction Cardiac Repair via LTB4. Circ Res 2021; 129:909-926. [PMID: 34515499 DOI: 10.1161/circresaha.121.319687] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
[Figure: see text].
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MESH Headings
- Animals
- Antigens, CD/genetics
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/genetics
- Antigens, Differentiation, Myelomonocytic/metabolism
- Chemokine CCL2/genetics
- Chemokine CCL2/metabolism
- Chemokine CCL4/genetics
- Chemokine CCL4/metabolism
- Chemokine CXCL2/metabolism
- Female
- Leukotriene B4/metabolism
- Lipoxygenase/metabolism
- Macrophages/metabolism
- Male
- Mice
- Mice, Inbred C57BL
- Myocardial Infarction/metabolism
- Myocardium/metabolism
- Protein Serine-Threonine Kinases/genetics
- Protein Serine-Threonine Kinases/metabolism
- Receptors, Cell Surface/genetics
- Receptors, Cell Surface/metabolism
- Receptors, Leukotriene B4/antagonists & inhibitors
- Receptors, Leukotriene B4/metabolism
- Serine-Threonine Kinase 3/genetics
- Serine-Threonine Kinase 3/metabolism
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Affiliation(s)
- Mingming Liu
- Tianjin Key Laboratory of Ion and Molecular Function of Cardiovascular Diseases, Tianjin Institute of Cardiology, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics (M.L., M.Y., H.L., D.A.), Tianjin Medical University
- Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital (M.L.)
| | - Meng Yan
- Tianjin Key Laboratory of Ion and Molecular Function of Cardiovascular Diseases, Tianjin Institute of Cardiology, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics (M.L., M.Y., H.L., D.A.), Tianjin Medical University
- The First Affiliated Hospital of Soochow University Department of Pathology, Soochow University, Suzhou (M.Y.)
| | - Jinlong He
- Physiology and Pathophysiology (J.H., H.L., Z.C., W.C., X.Z., Y.Z., D.A.), Tianjin Medical University
| | - Huizhen Lv
- Tianjin Key Laboratory of Ion and Molecular Function of Cardiovascular Diseases, Tianjin Institute of Cardiology, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics (M.L., M.Y., H.L., D.A.), Tianjin Medical University
- Physiology and Pathophysiology (J.H., H.L., Z.C., W.C., X.Z., Y.Z., D.A.), Tianjin Medical University
| | - Zhipeng Chen
- Physiology and Pathophysiology (J.H., H.L., Z.C., W.C., X.Z., Y.Z., D.A.), Tianjin Medical University
| | - Liyuan Peng
- Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan (L.P., C.C., D.-W.W.)
| | - Wenbin Cai
- Physiology and Pathophysiology (J.H., H.L., Z.C., W.C., X.Z., Y.Z., D.A.), Tianjin Medical University
| | - Fang Yao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College (F.Y., L.W.)
| | - Chen Chen
- Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan (L.P., C.C., D.-W.W.)
| | - Lei Shi
- Biochemistry and Molecular Biology, School of Basic Medical Sciences (L.S., K.Z.), Tianjin Medical University
| | - Kai Zhang
- Biochemistry and Molecular Biology, School of Basic Medical Sciences (L.S., K.Z.), Tianjin Medical University
| | - Xu Zhang
- Physiology and Pathophysiology (J.H., H.L., Z.C., W.C., X.Z., Y.Z., D.A.), Tianjin Medical University
| | - Dao-Wen Wang
- Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan (L.P., C.C., D.-W.W.)
| | - Li Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College (F.Y., L.W.)
| | - Yi Zhu
- Physiology and Pathophysiology (J.H., H.L., Z.C., W.C., X.Z., Y.Z., D.A.), Tianjin Medical University
| | - Ding Ai
- Tianjin Key Laboratory of Ion and Molecular Function of Cardiovascular Diseases, Tianjin Institute of Cardiology, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Key Laboratory of Immune Microenvironment and Disease (Ministry of Education), the Province and Ministry Co-sponsored Collaborative Innovation Center for Medical Epigenetics (M.L., M.Y., H.L., D.A.), Tianjin Medical University
- Physiology and Pathophysiology (J.H., H.L., Z.C., W.C., X.Z., Y.Z., D.A.), Tianjin Medical University
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19
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Chen D, Xiao Z, Guo H, Gogishvili D, Setroikromo R, Wouden PE, Dekker FJ. Identification of a Bromodomain‐like Region in 15‐Lipoxygenase‐1 Explains Its Nuclear Localization. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Deng Chen
- Department Chemical and Pharmaceutical Biology Groningen Research Institute of Pharmacy (GRIP) University of Groningen Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Zhangping Xiao
- Department Chemical and Pharmaceutical Biology Groningen Research Institute of Pharmacy (GRIP) University of Groningen Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Hao Guo
- Department Chemical and Pharmaceutical Biology Groningen Research Institute of Pharmacy (GRIP) University of Groningen Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Dea Gogishvili
- Department Chemical and Pharmaceutical Biology Groningen Research Institute of Pharmacy (GRIP) University of Groningen Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Rita Setroikromo
- Department Chemical and Pharmaceutical Biology Groningen Research Institute of Pharmacy (GRIP) University of Groningen Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Petra E. Wouden
- Department Chemical and Pharmaceutical Biology Groningen Research Institute of Pharmacy (GRIP) University of Groningen Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
| | - Frank J. Dekker
- Department Chemical and Pharmaceutical Biology Groningen Research Institute of Pharmacy (GRIP) University of Groningen Antonius Deusinglaan 1 9713 AV Groningen The Netherlands
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20
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Chen D, Xiao Z, Guo H, Gogishvili D, Setroikromo R, van der Wouden PE, Dekker FJ. Identification of a Bromodomain-like Region in 15-Lipoxygenase-1 Explains Its Nuclear Localization. Angew Chem Int Ed Engl 2021; 60:21875-21883. [PMID: 34388301 PMCID: PMC8518382 DOI: 10.1002/anie.202106968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Indexed: 01/17/2023]
Abstract
Lipoxygenase (LOX) activity provides oxidative lipid metabolites, which are involved in inflammatory disorders and tumorigenesis. Activity-based probes to detect the activity of LOX enzymes in their cellular context provide opportunities to explore LOX biology and LOX inhibition. Here, we developed Labelox B as a potent covalent LOX inhibitor for one-step activity-based labeling of proteins with LOX activity. Labelox B was used to establish an ELISA-based assay for affinity capture and antibody-based detection of specific LOX isoenzymes. Moreover, Labelox B enabled efficient activity-based labeling of endogenous LOXs in living cells. LOX proved to localize in the nucleus, which was rationalized by identification of a functional bromodomain-like consensus motif in 15-LOX-1. This indicates that 15-LOX-1 is not only involved in oxidative lipid metabolism, but also in chromatin binding, which suggests a potential role in chromatin modifications.
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Affiliation(s)
- Deng Chen
- Department Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Zhangping Xiao
- Department Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Hao Guo
- Department Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Dea Gogishvili
- Department Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Rita Setroikromo
- Department Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Petra E van der Wouden
- Department Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Frank J Dekker
- Department Chemical and Pharmaceutical Biology, Groningen Research Institute of Pharmacy (GRIP), University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
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21
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Glaser KM, Mihlan M, Lämmermann T. Positive feedback amplification in swarming immune cell populations. Curr Opin Cell Biol 2021; 72:156-162. [PMID: 34500367 DOI: 10.1016/j.ceb.2021.07.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 07/07/2021] [Accepted: 07/28/2021] [Indexed: 11/28/2022]
Abstract
Several immune cell types (neutrophils, eosinophils, T cells, and innate-like lymphocytes) display coordinated migration patterns when a population, formed of individually responding cells, moves through inflamed or infected tissues. "Swarming" refers to the process in which a population of migrating leukocytes switches from random motility to highly directed chemotaxis to form local cell clusters. Positive feedback amplification underlies this behavior and results from intercellular communication in the immune cell population. We here highlight recent findings on neutrophil swarming from mouse models, zebrafish larvae, and in vitro platforms for human cells, which together advanced our understanding of the principles and molecular mechanisms that shape immune cell swarming.
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Affiliation(s)
- Katharina M Glaser
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany; International Max Planck Research School for Immunobiology, Epigenetics and Metabolism (IMPRS-IEM), Freiburg, Germany; Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Michael Mihlan
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Tim Lämmermann
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany.
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22
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Liu G, Singha M, Pu L, Neupane P, Feinstein J, Wu HC, Ramanujam J, Brylinski M. GraphDTI: A robust deep learning predictor of drug-target interactions from multiple heterogeneous data. J Cheminform 2021; 13:58. [PMID: 34380569 PMCID: PMC8356453 DOI: 10.1186/s13321-021-00540-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Accepted: 07/31/2021] [Indexed: 12/22/2022] Open
Abstract
Traditional techniques to identify macromolecular targets for drugs utilize solely the information on a query drug and a putative target. Nonetheless, the mechanisms of action of many drugs depend not only on their binding affinity toward a single protein, but also on the signal transduction through cascades of molecular interactions leading to certain phenotypes. Although using protein-protein interaction networks and drug-perturbed gene expression profiles can facilitate system-level investigations of drug-target interactions, utilizing such large and heterogeneous data poses notable challenges. To improve the state-of-the-art in drug target identification, we developed GraphDTI, a robust machine learning framework integrating the molecular-level information on drugs, proteins, and binding sites with the system-level information on gene expression and protein-protein interactions. In order to properly evaluate the performance of GraphDTI, we compiled a high-quality benchmarking dataset and devised a new cluster-based cross-validation protocol. Encouragingly, GraphDTI not only yields an AUC of 0.996 against the validation dataset, but it also generalizes well to unseen data with an AUC of 0.939, significantly outperforming other predictors. Finally, selected examples of identified drugtarget interactions are validated against the biomedical literature. Numerous applications of GraphDTI include the investigation of drug polypharmacological effects, side effects through offtarget binding, and repositioning opportunities.
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Affiliation(s)
- Guannan Liu
- Division of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Manali Singha
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Limeng Pu
- Center for Computation and Technology, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Prasanga Neupane
- Division of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Joseph Feinstein
- Department of Computer Science, Brown University, Providence, RI, 02902, USA
| | - Hsiao-Chun Wu
- Division of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - J Ramanujam
- Division of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, LA, 70803, USA.,Center for Computation and Technology, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Michal Brylinski
- Department of Biological Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA. .,Center for Computation and Technology, Louisiana State University, Baton Rouge, LA, 70803, USA.
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23
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Yan M, Zhang S, Li C, Liu Y, Zhao J, Wang Y, Yang Y, Zhang L. 5-Lipoxygenase as an emerging target against age-related brain disorders. Ageing Res Rev 2021; 69:101359. [PMID: 33984528 DOI: 10.1016/j.arr.2021.101359] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 03/30/2021] [Accepted: 05/07/2021] [Indexed: 12/15/2022]
Abstract
Neuroinflammation is a common feature of age-related brain disorders including Alzheimer's disease (AD), Parkinson's disease (PD) and cerebral ischemia. 5-lipoxygenase (5-LOX), a proinflammatory enzyme, modulates inflammation by generating leukotrienes. Abnormal activation of 5-LOX and excessive production of leukotrienes have been detected in the development of age-related brain pathology. In this review, we provide an update on the current understanding of 5-LOX activation and several groups of functionally related inhibitors. In addition, the modulatory roles of 5-LOX in the pathogenesis and progression of the age-related brain disorders have been comprehensively highlighted and discussed. Inhibition of 5-LOX activation may represent a promising therapeutic strategy for AD, PD and cerebral ischemia.
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24
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Zhang T, Yang C, Chu J, Ning LN, Zeng P, Wang XM, Shi Y, Qin BJ, Qu N, Zhang Q, Tian Q. Emodin Prevented Depression in Chronic Unpredicted Mild Stress-Exposed Rats by Targeting miR-139-5p/5-Lipoxygenase. Front Cell Dev Biol 2021; 9:696619. [PMID: 34381778 PMCID: PMC8350171 DOI: 10.3389/fcell.2021.696619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/18/2021] [Indexed: 12/28/2022] Open
Abstract
Background The use of medicinal plant ingredients is one of the goals of developing potential drugs for treating depression. Compelling evidence suggests that anti-inflammatory medicines may block the occurrence of depression. We studied the effect of a natural compound, emodin, on the development of psychosocial stress-induced depression and the underlying mechanisms. Methods Chronic unpredicted mild stress (CUMS) for 7 weeks was performed to replicate psychosocial stress in rats. The sucrose preference test, force swimming test, and open field test were used to evaluate their behaviors. The differentially expressed proteins in the hippocampus were analyzed using proteomics. Nissl staining and Golgi staining were used to detect the loss of neurons and synapses, immunohistochemical staining was used to detect the activation of microglia, and the enzyme-linked immunosorbent assay was used to detect the levels of pro-inflammatory cytokines. Western blotting, immunofluorescence, and quantitative polymerase chain reaction were also performed. Results Hippocampal inflammation with up-regulated 5-lipoxygenase (5-LO) was observed in the depressed rats after CUMS exposure. The upregulation of 5-LO was caused by decreased miR-139-5p. To observe the effect of emodin, we screened out depression-susceptible (DeS) rats during CUMS and treated them with emodin (80 mg/kg/day). Two weeks later, emodin prevented the depression behaviors in DeS rats along with a series of pathological changes in their hippocampi, such as loss of neurons and spines, microglial activation, increased interleukin-1β and tumor necrosis factor-α, and the activation of 5-LO. Furthermore, we demonstrated that emodin inhibited its excess inflammatory response, possibly by targeting miR-139-5p/5-LO and modulating glycogen synthase kinase 3β and nuclear factor erythroid 2-related factor 2. Conclusion These results provide important evidence that emodin may be a candidate agent for the treatment of depression and established a key role of miR-139-5p/5-LO in the inflammation of depression.
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Affiliation(s)
- Teng Zhang
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Neurology, Shanxian Central Hospital, the Affiliated Huxi Hospital of Jining Medical College, Heze, China
| | - Can Yang
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiang Chu
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin-Na Ning
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Pathology, Gannan Medical University Pingxiang Hospital, Pingxiang, China
| | - Peng Zeng
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao-Ming Wang
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Shi
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Bao-Jian Qin
- Department of Neurology, Shanxian Central Hospital, the Affiliated Huxi Hospital of Jining Medical College, Heze, China
| | - Na Qu
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Psychological Trauma, Wuhan Mental Health Center, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Research Center for Psychological and Health Sciences, China University of Geosciences, Wuhan, China
| | - Qi Zhang
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Psychiatry, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qing Tian
- Department of Pathology and Pathophysiology, Key Laboratory of Neurological Disease of National Education Ministry, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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25
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Dimethyl fumarate induces ferroptosis and impairs NF-κB/STAT3 signaling in DLBCL. Blood 2021; 138:871-884. [PMID: 33876201 DOI: 10.1182/blood.2020009404] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Accepted: 03/24/2021] [Indexed: 11/20/2022] Open
Abstract
Despite the development of novel targeted drugs, the molecular heterogeneity of diffuse large B-cell lymphoma (DLBCL) still poses a major therapeutic challenge. DLBCL can be classified into at least two major subtypes, i.e. germinal center B-cell-like (GCB) and the aggressive activated B-cell-like (ABC) DLBCL, each characterized by specific gene expression profiles and mutation patterns. Here we demonstrate a broad anti-tumor effect of dimethyl fumarate (DMF) on both DLBCL subtypes, which is mediated by the induction of ferroptosis, a form of cell death driven by the peroxidation of phospholipids. Due to high expression of arachidonate 5-lipoxygenase in concert with low glutathione and glutathione peroxidase 4 levels, DMF induces lipid peroxidation and thus ferroptosis particularly in GCB DLBCL. In ABC DLBCL cells, which are addicted to NF-κB and STAT3 survival signaling, DMF treatment efficiently inhibits the activity of the IKK complex and JAK kinases. Interestingly, the BCL-2 specific BH3 mimetic ABT-199 and an inhibitor of ferroptosis suppressor protein 1 synergize with DMF in inducing cell death in DLBCL. Collectively, our findings identify the clinically approved drug DMF as a promising novel therapeutic option in the treatment of both GCB and ABC DLBCL.
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26
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MIYOSHI MAKOTO, USAMI MAKOTO, KAJITA AYUMI, KAI MOTOKI, NISHIYAMA YUYA, SHINOHARA MASAKAZU. Effect of Oral Tributyrin Treatment on Lipid Mediator Profiles in Endotoxin-Induced Hepatic Injury. THE KOBE JOURNAL OF MEDICAL SCIENCES 2020; 66:E129-E138. [PMID: 33994516 PMCID: PMC8212808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 10/21/2020] [Indexed: 06/12/2023]
Abstract
Eicosanoid modulation by butyrate has been reported in various cells and conditions. Recently, comprehensive analyses of lipid mediators using liquid chromatography/tandem mass spectrometry has been reported. We hypothesized that tributyrin, a prodrug of butyrate, may attenuate LPS-induced liver injury in rats by suppressing the production of pro-inflammatory lipid mediators and/or by inducing anti-inflammatory specialized proresolving mediators. To test this, groups of Wistar rats were orally administered tributyrin (1 g/kg body weight) or vehicle 1 h before intraperitoneal injection of LPS. The livers were collected at 0, 1.5, 6, and 24 h later and analyzed: lipid mediators were profiled by liquid chromatography/tandem mass spectrometry; expression of cyclooxygenase-2, 5-lipoxygenase (LOX), 12/15-LOX, and leukotriene (LT) A4 hydrolase, and nuclear translocation of 5-LOX were evaluated by western blot analysis; and induction of liver injury was assessed by immunostaining for 8-hydroxy-2'-deoxyguanosine, an indicator of oxidative DNA damage. We found that tributyrin treatment attenuated LPS-induced production of pro-inflammatory LTB4 (p < 0.05) and decreased oxidative stress levels in the liver. Tributyrin also attenuated the nuclear translocation of 5-LOX in response to LPS, suggesting a possible mechanism for the LTB4 reduction. LPS-induced changes in other lipid mediators were not significantly affected by tributyrin treatment up to 24 h after LPS injection. Our results suggest that oral tributyrin administration protects against endotoxemia-associated liver damage by reducing production of the pro-inflammatory eicosanoid LTB4.
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Affiliation(s)
- MAKOTO MIYOSHI
- Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - MAKOTO USAMI
- Faculty of Clinical Nutrition and Dietetics, Konan Women’s University, Kobe, Japan
| | - AYUMI KAJITA
- Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - MOTOKI KAI
- Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - YUYA NISHIYAMA
- Department of Biophysics, Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - MASAKAZU SHINOHARA
- The Integrated Center for Mass Spectrometry, Kobe University Graduate School of Medicine, Kobe, Japan
- Division of Epidemiology, Kobe University Graduate School of Medicine, Kobe, Japan
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27
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Tian W, Jiang X, Kim D, Guan T, Nicolls MR, Rockson SG. Leukotrienes in Tumor-Associated Inflammation. Front Pharmacol 2020; 11:1289. [PMID: 32973519 PMCID: PMC7466732 DOI: 10.3389/fphar.2020.01289] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 08/04/2020] [Indexed: 12/19/2022] Open
Abstract
Leukotrienes are biologically active eicosanoid lipid mediators that originate from oxidative metabolism of arachidonic acid. Biosynthesis of leukotrienes involves a set of soluble and membrane-bound enzymes that constitute a machinery complex primarily expressed by cells of myeloid origin. Leukotrienes and their synthetic enzymes are critical immune modulators for leukocyte migration. Increased concentrations of leukotrienes are implicated in a number of inflammatory disorders. More recent work indicates that leukotrienes may also interact with a variety of tissue cells, contributing to the low-grade inflammation of cardiovascular, neurodegenerative, and metabolic conditions, as well as that of cancer. Leukotriene signaling contributes to the active tumor microenvironment, promoting tumor growth and resistance to immunotherapy. This review summarizes recent insights into the intricate roles of leukotrienes in promoting tumor growth and metastasis through shaping the tumor microenvironment. The emerging possibilities for pharmacological targeting of leukotriene signaling in tumor metastasis are considered.
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Affiliation(s)
- Wen Tian
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Xinguo Jiang
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Dongeon Kim
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Torrey Guan
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Mark R Nicolls
- Department of Medicine, VA Palo Alto Health Care System, Palo Alto, CA, United States.,Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Stanley G Rockson
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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28
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Poplimont H, Georgantzoglou A, Boulch M, Walker HA, Coombs C, Papaleonidopoulou F, Sarris M. Neutrophil Swarming in Damaged Tissue Is Orchestrated by Connexins and Cooperative Calcium Alarm Signals. Curr Biol 2020; 30:2761-2776.e7. [PMID: 32502410 PMCID: PMC7372224 DOI: 10.1016/j.cub.2020.05.030] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/30/2020] [Accepted: 05/07/2020] [Indexed: 12/19/2022]
Abstract
Neutrophils are major inflammatory cells that rapidly infiltrate wounds to provide antimicrobial functions. Within the damaged tissue, neutrophil migration behavior often switches from exploratory patrolling to coordinated swarming, giving rise to dense clusters that further disrupt tissue architecture. This aggregation response is self-organized by neutrophil paracrine chemoattractant signaling (most notably of the inflammatory mediator leukotriene B4 [LTB4]). The coordination mechanism and possible evolutionary benefits of neutrophil swarms are elusive. Here, we show that neutrophil swarms require mutual reinforcement of damage signaling at the wound core. New biosensors and live imaging in zebrafish revealed that neutrophil chemoattractant synthesis is triggered by a sustained calcium flux upon contact with necrotic tissue that requires sensing of the damage signal ATP. This "calcium alarm" signal rapidly propagates in the nascent neutrophil cluster in a contact-dependent manner via connexin-43 (Cx43) hemichannels, which are mediators of active ATP release. This enhances chemoattractant biosynthesis in the growing cluster, which is instrumental for coordinated motion and swarming. Inhibition of neutrophil Cx43 compromises clearance of wound-colonizing P. aeruginosa bacteria and exacerbates infection-induced morbidity. Thus, cooperative production of alarm signals among pioneer clustering neutrophils fuels the growth of dense antimicrobial cell masses that effectively seal off breached tissue barriers from opportunistic pathogens.
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Affiliation(s)
- Hugo Poplimont
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3DY, UK
| | - Antonios Georgantzoglou
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3DY, UK
| | - Morgane Boulch
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3DY, UK
| | - Hazel A Walker
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3DY, UK
| | - Caroline Coombs
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3DY, UK
| | - Foteini Papaleonidopoulou
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3DY, UK
| | - Milka Sarris
- Department of Physiology, Development and Neuroscience, University of Cambridge, Downing Site, Cambridge CB2 3DY, UK.
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29
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He Z, Tao D, Xiong J, Lou F, Zhang J, Chen J, Dai W, Sun J, Wang Y. Phosphorylation of 5-LOX: The Potential Set-point of Inflammation. Neurochem Res 2020; 45:2245-2257. [PMID: 32671628 DOI: 10.1007/s11064-020-03090-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 06/11/2020] [Accepted: 07/06/2020] [Indexed: 12/12/2022]
Abstract
Inflammation secondary to tissue injuries serves as a double-edged sword that determines the prognosis of tissue repair. As one of the most important enzymes controlling the inflammation process by producing leukotrienes, 5-lipoxygenase (5-LOX, also called 5-LO) has been one of the therapeutic targets in regulating inflammation for a long time. Although a large number of 5-LOX inhibitors have been explored, only a few of them can be applied clinically. Surprisingly, phosphorylation of 5-LOX reveals great significance in regulating the subcellular localization of 5-LOX, which has proven to be an important mechanism underlying the enzymatic activities of 5-LOX. There are at least three phosphorylation sites in 5-LOX jointly to determine the final inflammatory outcomes, and adjustment of phosphorylation of 5-LOX at different phosphorylation sites brings hope to provide an unrecognized means to regulate inflammation. The present review intends to shed more lights into the set-point-like mechanisms of phosphorylation of 5-LOX and its possible clinical application by summarizing the biological properties of 5-LOX, the relationship of 5-LOX with neurodegenerative diseases and brain injuries, the phosphorylation of 5-LOX at different sites, the regulatory effects and mechanisms of phosphorylated 5-LOX upon inflammation, as well as the potential anti-inflammatory application through balancing the phosphorylation-depended set-point.
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Affiliation(s)
- Zonglin He
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China.,Faculty of Medicine, International school, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China
| | - Di Tao
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China.,Faculty of Medicine, International school, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China
| | - Jiaming Xiong
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China
| | - Fangfang Lou
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China
| | - Jiayuan Zhang
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China
| | - Jinxia Chen
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China
| | - Weixi Dai
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China.,Faculty of Medicine, International school, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China
| | - Jing Sun
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China
| | - Yuechun Wang
- Department of Physiology, Basic Medical School, Jinan University, Huangpu Avenue 601, Tianhe District, Guangzhou, Guangdong Province, China.
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30
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Hijioka M, Futokoro R, Ohto-Nakanishi T, Nakanishi H, Katsuki H, Kitamura Y. Microglia-released leukotriene B 4 promotes neutrophil infiltration and microglial activation following intracerebral hemorrhage. Int Immunopharmacol 2020; 85:106678. [PMID: 32544870 DOI: 10.1016/j.intimp.2020.106678] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 05/19/2020] [Accepted: 06/04/2020] [Indexed: 10/24/2022]
Abstract
Intracerebral hemorrhage (ICH) from blood vessel rupture results in parenchymal hematoma formation and neuroinflammation, ultimately leading to neurodegeneration. Several lines of evidence suggest that the severity of ICH-induced neural damage is exacerbated by infiltration of T-cells, monocytes, and especially neutrophils into the hematoma. Neutrophil migration is regulated by chemokines, formyl peptides, and leukotriene B4 (LTB4), a metabolite of arachidonic acid. In this study, we demonstrate that LTB4 is a key signaling factor promoting microglial activity and leukocyte infiltration into hematoma and thus a potentially critical determinant of ICH pathogenesis and clinical outcome. Lipidomic analysis revealed markedly increased LTB4 concentration in the hematoma-containing brain tissues 6-24 h after experimental ICH in mice. Expression of 5-lipoxygenase, a rate-limiting enzyme for LTB4 production, was upregulated in activated microglia and neutrophils within the hematoma following ICH. Treatment of cultured BV-2 microglia with thrombin, which is abundant in hematoma, promoted activation, proinflammatory cytokine expression, and LTB4 secretion. Further, conditioned medium from thrombin-stimulated BV-2 cells potentiated the transwell migration of neutrophil-like cells, a response blocked by a LTB4 receptor antagonist. These results suggest that arachidonic acid conversion to LTB4 following ICH contributes to neuroinflammation and ensuing neural tissue damage by inducing microglial activation and neutrophil recruitment.
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Affiliation(s)
- Masanori Hijioka
- Laboratory of Pharmacology and Neurobiology, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga 525-8577, Japan.
| | - Risa Futokoro
- Laboratory of Pharmacology and Neurobiology, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga 525-8577, Japan
| | | | - Hiroki Nakanishi
- Lipidome Lab Co., Ltd., Akita 010-0825, Japan; Research Center for Biosignaling, Akita University, Akita 010-8543, Japan
| | - Hiroshi Katsuki
- Department of Chemico-Pharmacological Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| | - Yoshihisa Kitamura
- Laboratory of Pharmacology and Neurobiology, College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga 525-8577, Japan
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31
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He R, Chen Y, Cai Q. The role of the LTB4-BLT1 axis in health and disease. Pharmacol Res 2020; 158:104857. [PMID: 32439596 DOI: 10.1016/j.phrs.2020.104857] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/03/2020] [Accepted: 04/20/2020] [Indexed: 12/16/2022]
Abstract
Leukotriene B4 (LTB4) is a major type of lipid mediator that is rapidly generated from arachidonic acid through sequential action of 5-lipoxygenase (5-LO), 5-lipoxygenase-activating protein (FLAP) and LTA4 hydrolase (LTA4H) in response to various stimuli. LTB4 is well known to be a chemoattractant for leukocytes, particularly neutrophils, via interaction with its high-affinity receptor BLT1. Extensive attention has been paid to the role of the LTB4-BLT1 axis in acute and chronic inflammatory diseases, such as infectious diseases, allergy, autoimmune diseases, and metabolic disease via mediating recruitment and/or activation of different types of inflammatory cells depending on different stages or the nature of inflammatory response. Recent studies also demonstrated that LTB4 acts on non-immune cells via BLT1 to initiate and/or amplify pathological inflammation in various tissues. In addition, emerging evidence reveals a complex role of the LTB4-BLT1 axis in cancer, either tumor-inhibitory or tumor-promoting, depending on the different target cells. In this review, we summarize both established understanding and the most recent progress in our knowledge about the LTB4-BLT1 axis in host defense, inflammatory diseases and cancer.
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Affiliation(s)
- Rui He
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, People's Republic of China.
| | - Yu Chen
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, People's Republic of China
| | - Qian Cai
- Department of Immunology, School of Basic Medical Sciences, Fudan University, Shanghai, People's Republic of China
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32
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Satish M, Agrawal DK. Atherothrombosis and the NLRP3 inflammasome - endogenous mechanisms of inhibition. Transl Res 2020; 215:75-85. [PMID: 31469975 PMCID: PMC6889001 DOI: 10.1016/j.trsl.2019.08.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/07/2019] [Accepted: 08/07/2019] [Indexed: 12/31/2022]
Abstract
Recently, the CANTOS (Canakinumab Anti-Inflammatory Thrombosis Outcomes Study) showed the successful anti-inflammatory benefit of canakinumab, a monoclonal antibody targeting interleukin-1ß (IL-1ß) toward major cardiovascular events (MACE) in patients with a previous myocardial infarction (MI). The magnitude of reduction in MACE was directly attributed to a reduction witnessed in IL-6 and C-reactive protein (CRP) and highlighted the therapeutic potential of selectively targeting IL-1ß for atherosclerotic disease, a notion previously introduced in animal models. IL-1ß is involved in the downstream activation of the IL-6 receptor, which itself has been previously implicated as a target for atherothrombosis from Mendelian randomization studies. Further support has been garnered with the results of CIRT (Cardiovascular Inflammation Reduction Trial), which showed the inability of low-dose methotrexate to reduce IL-1ß, IL-6, or high-sensitivity CRP (hsCRP) in addition to MACE among patients with prior MI or multivessel coronary artery disease (CAD) but with normal hsCRP levels. Therefore, elucidation of therapeutic targets against the IL-1ß pathway is of immense interest currently in treating atherothrombosis. Upstream and serving as an activator of IL-1ß lies the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome that has been well described in animal models to be activated by cholesterol crystals or hypoxia to promote cleavage and secretion of IL-1ß and IL-18 that lead to atherosclerotic deposition in arteries. Given the direct implication of an atherogenic role to the NLRP3 inflammasome in generating these cytokines, NLRP3 inhibitors are of interest with the consideration to move upstream from the initial success of anti-IL-1ß therapy. With further discussion of the existing knowledge on the proinflammatory relationship of the NLRP3 inflammasome with atherosclerosis, this review summarizes and critically evaluates the preclinical and interventional findings of endogenous NLRP3 inflammasome inhibition in attempts to elucidate anti-inflammatory mechanisms, and therapeutic targets against atherothrombosis. Further investigation focusing on the endogenous mechanisms of inhibition of the NLRP3 inflammasome would uncover diagnostic routes from defective means in inflammatory resolution. Specifically, pro-resolving lipid mediators, autophagy, and phosphorylation/dephosphorylation mechanisms are 3 points of worthy investigation from existing evidence.
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Affiliation(s)
- Mohan Satish
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, Nebraska
| | - Devendra K Agrawal
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, Nebraska; Department of Translational Research, Western University of Health Sciences, Pomona, California.
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Hajeyah AA, Griffiths WJ, Wang Y, Finch AJ, O’Donnell VB. The Biosynthesis of Enzymatically Oxidized Lipids. Front Endocrinol (Lausanne) 2020; 11:591819. [PMID: 33329396 PMCID: PMC7711093 DOI: 10.3389/fendo.2020.591819] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 10/26/2020] [Indexed: 12/14/2022] Open
Abstract
Enzymatically oxidized lipids are a specific group of biomolecules that function as key signaling mediators and hormones, regulating various cellular and physiological processes from metabolism and cell death to inflammation and the immune response. They are broadly categorized as either polyunsaturated fatty acid (PUFA) containing (free acid oxygenated PUFA "oxylipins", endocannabinoids, oxidized phospholipids) or cholesterol derivatives (oxysterols, steroid hormones, and bile acids). Their biosynthesis is accomplished by families of enzymes that include lipoxygenases (LOX), cyclooxygenases (COX), cytochrome P450s (CYP), and aldo-keto reductases (AKR). In contrast, non-enzymatically oxidized lipids are produced by uncontrolled oxidation and are broadly considered to be harmful. Here, we provide an overview of the biochemistry and enzymology of LOXs, COXs, CYPs, and AKRs in humans. Next, we present biosynthetic pathways for oxylipins, oxidized phospholipids, oxysterols, bile acids and steroid hormones. Last, we address gaps in knowledge and suggest directions for future work.
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Affiliation(s)
- Ali A. Hajeyah
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
- *Correspondence: Ali A. Hajeyah,
| | - William J. Griffiths
- Institute of Life Science, Swansea University Medical School, Swansea, United Kingdom
| | - Yuqin Wang
- Institute of Life Science, Swansea University Medical School, Swansea, United Kingdom
| | - Andrew J. Finch
- Centre for Tumour Biology, Barts Cancer Institute, Queen Mary University of London, London, United Kingdom
| | - Valerie B. O’Donnell
- Systems Immunity Research Institute and Division of Infection and Immunity, Cardiff University, Cardiff, United Kingdom
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Saunders CA, Parent CA. Emerging roles for the nucleus during neutrophil signal relay and NETosis. Curr Opin Cell Biol 2019; 62:135-143. [PMID: 31835148 DOI: 10.1016/j.ceb.2019.10.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/14/2019] [Accepted: 10/29/2019] [Indexed: 01/21/2023]
Abstract
The nucleus houses and protects genomic DNA, which is surrounded by the nuclear envelope. Owing to its size and stiffness, the nucleus is often a barrier to migration through confined spaces. Neutrophils are terminally differentiated, short-lived cells that migrate through tissues in response to injury and infections. The neutrophil nucleus is soft, multilobular, and exhibits altered levels of key nuclear envelope proteins. These alterations result in a multifunctional organelle that serves as a signaling hub during migration and NETosis, a process by which neutrophils release decondensed chromatin decorated with granular enzymes that entrap pathogens. In this review, we present emerging evidence suggesting that a unique, ambiguous cell-cycle state is critical for NETosis and migration. Finally, we discuss how the mechanisms underlying migration and NETosis are evolutionarily conserved.
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Affiliation(s)
| | - Carole A Parent
- Department of Pharmacology; Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, MI, 48109, USA.
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Emerging Roles of 5-Lipoxygenase Phosphorylation in Inflammation and Cell Death. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2749173. [PMID: 31871543 PMCID: PMC6906800 DOI: 10.1155/2019/2749173] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Revised: 10/30/2019] [Accepted: 11/11/2019] [Indexed: 12/12/2022]
Abstract
5-Lipoxygenase (ALOX5) is an iron-containing and nonheme dioxygenase that catalyzes the peroxidation of polyunsaturated fatty acids such as arachidonic acid. ALOX5 is the rate-limiting enzyme for the biosynthesis of leukotrienes, a family of proinflammatory lipid mediators derived from arachidonic acid. ALOX5 also make great contributions to mediating lipid peroxidation. In recent years, it has been discovered that ALOX5 plays a central role in cell death including apoptosis, pyroptosis, and ferroptosis, a newly discovered type of cell death. According to the previous studies, ALOX5 can regulate cell death in two ways: one is inflammation and the other is lipid peroxidation. Meanwhile, it has been shown that ALOX5 activity is regulated by several factors including protein phosphorylation, ALOX5-interactng protein, redox state, and metal ions such as iron and calcium. In this review, we aim to summarize the knowledge on the emerging roles of ALOX5 protein phosphorylation in the regulation of cell death and inflammation in order to explore a potential target for human diseases.
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HMGB1-C1q complexes regulate macrophage function by switching between leukotriene and specialized proresolving mediator biosynthesis. Proc Natl Acad Sci U S A 2019; 116:23254-23263. [PMID: 31570601 DOI: 10.1073/pnas.1907490116] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Macrophage polarization is critical to inflammation and resolution of inflammation. We previously showed that high-mobility group box 1 (HMGB1) can engage receptor for advanced glycation end product (RAGE) to direct monocytes to a proinflammatory phenotype characterized by production of type 1 IFN and proinflammatory cytokines. In contrast, HMGB1 plus C1q form a tetramolecular complex cross-linking RAGE and LAIR-1 and directing monocytes to an antiinflammatory phenotype. Lipid mediators, as well as cytokines, help establish a milieu favoring either inflammation or resolution of inflammation. This study focuses on the induction of lipid mediators by HMGB1 and HMGB1 plus C1q and their regulation of IRF5, a transcription factor critical for the induction and maintenance of proinflammatory macrophages. Here, we show that HMGB1 induces leukotriene production through a RAGE-dependent pathway, while HMGB1 plus C1q induces specialized proresolving lipid mediators lipoxin A4, resolvin D1, and resolvin D2 through a RAGE- and LAIR-1-dependent pathway. Leukotriene exposure contributes to induction of IRF5 in a positive-feedback loop. In contrast, resolvins (at 20 nM) block IRF5 induction and prevent the differentiation of inflammatory macrophages. Finally, we have generated a molecular mimic of HMGB1 plus C1q, which cross-links RAGE and LAIR-1 and polarizes monocytes to an antiinflammatory phenotype. These findings may provide a mechanism to control nonresolving inflammation in many pathologic conditions.
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Tian W, Jiang X, Sung YK, Shuffle E, Wu TH, Kao PN, Tu AB, Dorfmüller P, Cao A, Wang L, Peng G, Kim Y, Zhang P, Chappell J, Pasupneti S, Dahms P, Maguire P, Chaib H, Zamanian R, Peters-Golden M, Snyder MP, Voelkel NF, Humbert M, Rabinovitch M, Nicolls MR. Phenotypically Silent Bone Morphogenetic Protein Receptor 2 Mutations Predispose Rats to Inflammation-Induced Pulmonary Arterial Hypertension by Enhancing the Risk for Neointimal Transformation. Circulation 2019; 140:1409-1425. [PMID: 31462075 DOI: 10.1161/circulationaha.119.040629] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Bmpr2 (bone morphogenetic protein receptor 2) mutations are critical risk factors for hereditary pulmonary arterial hypertension (PAH) with approximately 20% of carriers developing disease. There is an unmet medical need to understand how environmental factors, such as inflammation, render Bmpr2 mutants susceptible to PAH. Overexpressing 5-LO (5-lipoxygenase) provokes lung inflammation and transient PAH in Bmpr2+/- mice. Accordingly, 5-LO and its metabolite, leukotriene B4, are candidates for the second hit. The purpose of this study was to determine how 5-LO-mediated pulmonary inflammation synergized with phenotypically silent Bmpr2 defects to elicit significant pulmonary vascular disease in rats. METHODS Monoallelic Bmpr2 mutant rats were generated and found phenotypically normal for up to 1 year of observation. To evaluate whether a second hit would elicit disease, animals were exposed to 5-LO-expressing adenovirus, monocrotaline, SU5416, SU5416 with chronic hypoxia, or chronic hypoxia alone. Bmpr2-mutant hereditary PAH patient samples were assessed for neointimal 5-LO expression. Pulmonary artery endothelial cells with impaired BMPR2 signaling were exposed to increased 5-LO-mediated inflammation and were assessed for phenotypic and transcriptomic changes. RESULTS Lung inflammation, induced by intratracheal delivery of 5-LO-expressing adenovirus, elicited severe PAH with intimal remodeling in Bmpr2+/- rats but not in their wild-type littermates. Neointimal lesions in the diseased Bmpr2+/- rats gained endogenous 5-LO expression associated with elevated leukotriene B4 biosynthesis. Bmpr2-mutant hereditary PAH patients similarly expressed 5-LO in the neointimal cells. In vitro, BMPR2 deficiency, compounded by 5-LO-mediated inflammation, generated apoptosis-resistant and proliferative pulmonary artery endothelial cells with mesenchymal characteristics. These transformed cells expressed nuclear envelope-localized 5-LO consistent with induced leukotriene B4 production, as well as a transcriptomic signature similar to clinical disease, including upregulated nuclear factor Kappa B subunit (NF-κB), interleukin-6, and transforming growth factor beta (TGF-β) signaling pathways. The reversal of PAH and vasculopathy in Bmpr2 mutants by TGF-β antagonism suggests that TGF-β is critical for neointimal transformation. CONCLUSIONS In a new 2-hit model of disease, lung inflammation induced severe PAH pathology in Bmpr2+/- rats. Endothelial transformation required the activation of canonical and noncanonical TGF-β signaling pathways and was characterized by 5-LO nuclear envelope translocation with enhanced leukotriene B4 production. This study offers an explanation of how an environmental injury unleashes the destructive potential of an otherwise silent genetic mutation.
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Affiliation(s)
- Wen Tian
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Xinguo Jiang
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Yon K Sung
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Eric Shuffle
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Ting-Hsuan Wu
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Peter N Kao
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Allen B Tu
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Peter Dorfmüller
- Faculté de Médecine, Université Paris-Sud and Université Paris-Saclay, Le Kremlin-Bicêtre, France (P.D., M.H.).,Institut National de la Sante Et de la Recherche Medicale UMR_S 999, Le Plessis-Robinson, France (P.D., M.H.).,Pathology Department, Hôpital Marie Lannelongue, Le Plessis-Robinson, Paris, France (P.D.)
| | - Aiqin Cao
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Lingli Wang
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Gongyong Peng
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.).,State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, China (G.P.)
| | - Yesl Kim
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Patrick Zhang
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - James Chappell
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Shravani Pasupneti
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Petra Dahms
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Peter Maguire
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Hassan Chaib
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Roham Zamanian
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | | | - Michael P Snyder
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | | | - Marc Humbert
- Faculté de Médecine, Université Paris-Sud and Université Paris-Saclay, Le Kremlin-Bicêtre, France (P.D., M.H.).,Institut National de la Sante Et de la Recherche Medicale UMR_S 999, Le Plessis-Robinson, France (P.D., M.H.).,AP-HP, Service de Pneumologie, Centre de Référence de l'Hypertension Pulmonaire Sévère, Department Hospitalo-Universitaire Thorax Innovation, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France (M.H.)
| | - Marlene Rabinovitch
- Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
| | - Mark R Nicolls
- Veterans Affairs Palo Alto Health Care System, CA (W.T, X.J., Y.K.S., E.S., A.B.T., G.P., Y.K., P.Z., S.P., P.D., M.R.N.).,Stanford University School of Medicine, CA (W.T., X.J., Y.K.S., E.S., T.H.W., P.N.K., A.B.T., A.C., L.W., G.P., Y.K., P.Z., J.C., S.P., P.D., P.M., H.C., R.Z., M.P.S., M.R., M.R.N.)
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Häfner AK, Kahnt AS, Steinhilber D. Beyond leukotriene formation—The noncanonical functions of 5-lipoxygenase. Prostaglandins Other Lipid Mediat 2019; 142:24-32. [DOI: 10.1016/j.prostaglandins.2019.03.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Revised: 03/14/2019] [Accepted: 03/25/2019] [Indexed: 01/17/2023]
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López-Vicario C, Titos E, Walker ME, Alcaraz-Quiles J, Casulleras M, Durán-Güell M, Flores-Costa R, Pérez-Romero N, Forné M, Dalli J, Clària J. Leukocytes from obese individuals exhibit an impaired SPM signature. FASEB J 2019; 33:7072-7083. [DOI: 10.1096/fj.201802587r] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Cristina López-Vicario
- Biochemistry and Molecular Genetics ServiceHospital Clínic—Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)University of BarcelonaCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)MadridSpain
| | - Esther Titos
- Biochemistry and Molecular Genetics ServiceHospital Clínic—Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)University of BarcelonaCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)MadridSpain
- Department of Biomedical SciencesUniversity of BarcelonaBarcelonaSpain
| | - Mary E. Walker
- Lipid Mediator UnitBiochemical PharmacologyWilliam Harvey Research InstituteBarts and the London School of MedicineQueen Mary University of LondonLondonUnited Kingdom
- Centre for Inflammation and Therapeutic InnovationQueen Mary University of LondonLondonUnited Kingdom
| | - José Alcaraz-Quiles
- Biochemistry and Molecular Genetics ServiceHospital Clínic—Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)University of BarcelonaCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)MadridSpain
| | - Mireia Casulleras
- Biochemistry and Molecular Genetics ServiceHospital Clínic—Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)University of BarcelonaCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)MadridSpain
| | - Marta Durán-Güell
- Biochemistry and Molecular Genetics ServiceHospital Clínic—Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)University of BarcelonaCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)MadridSpain
| | - Roger Flores-Costa
- Biochemistry and Molecular Genetics ServiceHospital Clínic—Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)University of BarcelonaCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)MadridSpain
| | | | - Montserrat Forné
- Gastroenterology DepartmentHospital Universitari Mútua TerrassaTerrassaSpain
| | - Jesmond Dalli
- Lipid Mediator UnitBiochemical PharmacologyWilliam Harvey Research InstituteBarts and the London School of MedicineQueen Mary University of LondonLondonUnited Kingdom
- Centre for Inflammation and Therapeutic InnovationQueen Mary University of LondonLondonUnited Kingdom
| | - Joan Clària
- Biochemistry and Molecular Genetics ServiceHospital Clínic—Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)University of BarcelonaCentro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD)MadridSpain
- Department of Biomedical SciencesUniversity of BarcelonaBarcelonaSpain
- European Foundation for the Study of Chronic Liver Failure (EF Clif)BarcelonaSpain
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Satish M, Agrawal DK. Pro-resolving lipid mediators in the resolution of neointimal hyperplasia pathogenesis in atherosclerotic diseases. Expert Rev Cardiovasc Ther 2019; 17:177-184. [PMID: 30582389 PMCID: PMC6679914 DOI: 10.1080/14779072.2019.1563483] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 12/21/2018] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Despite advances in drug eluting technologies, neointimal hyperplasia (NIH) and restenosis still plagues endovascular therapy in atherosclerotic diseases. By appreciating atherosclerosis and NIH as complex inflammatory processes, specialized pro-resolving mediators (SPMs) are a superfamily of endogenous unsaturated fatty-acid derived lipids with the potential for inflammatory resolution. Areas covered: Inquiry into SPMs in this context is a novel approach and is the focus of this review, with emphasis on our understanding with NIH. Prior mechanistic understandings of SPM deficiency with atherosclerosis has offered insight, as well as the complexity and diversity of the SPM superfamily. Therapeutic investigation using SPMs to combat NIH is also evaluated here. Expert commentary: Endogenous deficiency of SPMs synthesis by 12/15-lipoxygenase underlies resolution deficits in atherosclerosis and NIH. Upstream PDGF inhibition by SPMs, most notably RvD1 and LXA4, confers a multifactorial attenuation of NIH that involves interconnected anti-inflammatory efforts, most notably switch pro-resolving smooth muscle cells (vSMCs) and macrophages. The ALX/FPR2 is one receptor system identified on vSMCs that interacts with these SPMs to promote NIH resolution. Therapeutically, while shown to be promising with less stent burden or cytotoxicity, SPMs must be balanced by necessary mechanistic, pharmacokinetic and anatomical considerations.
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Affiliation(s)
- Mohan Satish
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
| | - Devendra K Agrawal
- Department of Clinical and Translational Science, Creighton University School of Medicine, Omaha, NE USA
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41
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Walter KR, Lin X, Jacobi SK, Käser T, Esposito D, Odle J. Dietary arachidonate in milk replacer triggers dual benefits of PGE 2 signaling in LPS-challenged piglet alveolar macrophages. J Anim Sci Biotechnol 2019; 10:13. [PMID: 30815256 PMCID: PMC6376662 DOI: 10.1186/s40104-019-0321-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 01/09/2019] [Indexed: 12/23/2022] Open
Abstract
Background Respiratory infections challenge the swine industry, despite common medicinal practices. The dual signaling nature of PGE2 (supporting both inflammation and resolution) makes it a potent regulator of immune cell function. Therefore, the use of dietary long chain n-6 PUFA to enhance PGE2 effects merits investigation. Methods Day-old pigs (n = 60) were allotted to one of three dietary groups for 21 d (n = 20/diet), and received either a control diet (CON, arachidonate = 0.5% of total fatty acids), an arachidonate (ARA)-enriched diet (LC n-6, ARA = 2.2%), or an eicosapentaenoic (EPA)-enriched diet (LC n-3, EPA = 3.0%). Alveolar macrophages and lung parenchymal tissue were collected for fatty acid analysis. Isolated alveolar macrophages were stimulated with LPS in situ for 24 h, and mRNA was isolated to assess markers associated with inflammation and eicosanoid production. Culture media were collected to assess PGE2 secretion. Oxidative burst in macrophages was measured by: 1) oxygen consumption and extracellular acidification (via Seahorse), 2) cytoplasmic oxidation and 3) nitric oxide production following 4, 18, and 24 h of LPS stimulation. Results Concentration of ARA (% of fatty acids, w/w) in macrophages from pigs fed LC n-6 was 86% higher than CON and 18% lower in pigs fed LC n-3 (P < 0.01). Following LPS stimulation, abundance of COX-2 and TNF-α mRNA (P < 0.0001), and PGE2 secretion (P < 0. 01) were higher in LC n-6 PAM vs. CON. However, ALOX5 abundance was 1.6-fold lower than CON. Macrophages from CON and LC n-6 groups were 4-fold higher in ALOX12/15 abundance (P < 0.0001) compared to LC n-3. Oxygen consumption and extracellular acidification rates increased over 4 h following LPS stimulation (P < 0.05) regardless of treatment. Similarly, increases in cytoplasmic oxidation (P < 0.001) and nitric oxide production (P < 0.002) were observed after 18 h of LPS stimulation but were unaffected by diet. Conclusions We infer that enriching diets with arachidonic acid may be an effective means to enhance a stronger innate immunologic response to respiratory challenges in neonatal pigs. However, further work is needed to examine long-term safety, clinical efficacy and economic viability. Electronic supplementary material The online version of this article (10.1186/s40104-019-0321-1) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kathleen R Walter
- 1Department of Animal Science, Plants for Human Health Institute, North Carolina State University, Kannapolis, North Carolina USA.,2Department of Animal Science, North Carolina State University, Raleigh, North Carolina USA
| | - Xi Lin
- 2Department of Animal Science, North Carolina State University, Raleigh, North Carolina USA
| | - Sheila K Jacobi
- 3Department of Animal Science, Ohio State University, Columbus, Ohio USA
| | - Tobias Käser
- 4Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina USA
| | - Debora Esposito
- 1Department of Animal Science, Plants for Human Health Institute, North Carolina State University, Kannapolis, North Carolina USA.,2Department of Animal Science, North Carolina State University, Raleigh, North Carolina USA
| | - Jack Odle
- 2Department of Animal Science, North Carolina State University, Raleigh, North Carolina USA
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42
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Hiesinger K, Wagner KM, Hammock BD, Proschak E, Hwang SH. Development of multitarget agents possessing soluble epoxide hydrolase inhibitory activity. Prostaglandins Other Lipid Mediat 2019; 140:31-39. [PMID: 30593866 PMCID: PMC6345559 DOI: 10.1016/j.prostaglandins.2018.12.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 11/27/2018] [Accepted: 12/24/2018] [Indexed: 02/08/2023]
Abstract
Over the last two decades polypharmacology has emerged as a new paradigm in drug discovery, even though developing drugs with high potency and selectivity toward a single biological target is still a major strategy. Often, targeting only a single enzyme or receptor shows lack of efficacy. High levels of inhibitor of a single target also can lead to adverse side effects. A second target may offer additive or synergistic effects to affecting the first target thereby reducing on- and off-target side effects. Therefore, drugs that inhibit multiple targets may offer a great potential for increased efficacy and reduced the adverse effects. In this review we summarize recent findings of rationally designed multitarget compounds that are aimed to improve efficacy and safety profiles compared to those that target a single enzyme or receptor. We focus on dual inhibitors/modulators that target the soluble epoxide hydrolase (sEH) as a common part of their design to take advantage of the beneficial effects of sEH inhibition.
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Affiliation(s)
- Kerstin Hiesinger
- Institute of Pharmaceutical Chemistry, Goethe-University of Frankfurt, Max-von-Laue Str. 9, D-60439, Frankfurt am Main, Germany
| | - Karen M Wagner
- Department of Entomology and Nematology and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Bruce D Hammock
- Department of Entomology and Nematology and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA
| | - Ewgenij Proschak
- Institute of Pharmaceutical Chemistry, Goethe-University of Frankfurt, Max-von-Laue Str. 9, D-60439, Frankfurt am Main, Germany
| | - Sung Hee Hwang
- Department of Entomology and Nematology and UC Davis Comprehensive Cancer Center, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA.
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Cai B, Kasikara C, Doran AC, Ramakrishnan R, Birge RB, Tabas I. MerTK signaling in macrophages promotes the synthesis of inflammation resolution mediators by suppressing CaMKII activity. Sci Signal 2018; 11:eaar3721. [PMID: 30254055 PMCID: PMC6171110 DOI: 10.1126/scisignal.aar3721] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Inflammation resolution counterbalances excessive inflammation and restores tissue homeostasis after injury. Failure of resolution contributes to the pathology of numerous chronic inflammatory diseases. Resolution is mediated by endogenous specialized proresolving mediators (SPMs), which are derived from long-chain fatty acids by lipoxygenase (LOX) enzymes. 5-LOX plays a critical role in the biosynthesis of two classes of SPMs: lipoxins and resolvins. Cytoplasmic localization of the nonphosphorylated form of 5-LOX is essential for SPM biosynthesis, whereas nuclear localization of phosphorylated 5-LOX promotes proinflammatory leukotriene production. We previously showed that MerTK, an efferocytosis receptor on macrophages, promotes SPM biosynthesis by increasing the abundance of nonphosphorylated, cytoplasmic 5-LOX. We now show that activation of MerTK in human macrophages led to ERK-mediated expression of the gene encoding sarcoplasmic/endoplasmic reticulum calcium ATPase 2 (SERCA2), which decreased the cytosolic Ca2+ concentration and suppressed the activity of calcium/calmodulin-dependent protein kinase II (CaMKII). This, in turn, reduced the activities of the mitogen-activated protein kinase (MAPK) p38 and the kinase MK2, resulting in the increased abundance of the nonphosphorylated, cytoplasmic form of 5-LOX and enhanced SPM biosynthesis. In a zymosan-induced peritonitis model, an inflammatory setting in which macrophage MerTK activation promotes resolution, inhibition of ERK activation delayed resolution, which was characterized by an increased number of neutrophils and decreased amounts of SPMs in tissue exudates. These findings contribute to our understanding of how MerTK signaling induces 5-LOX-derived SPM biosynthesis and suggest a therapeutic strategy to boost inflammation resolution in settings where defective resolution promotes disease progression.
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Affiliation(s)
- Bishuang Cai
- Departments of Medicine, Pathology and Cell Biology, and Physiology, Columbia University, New York, NY 10032, USA.
| | - Canan Kasikara
- Departments of Medicine, Pathology and Cell Biology, and Physiology, Columbia University, New York, NY 10032, USA
| | - Amanda C Doran
- Departments of Medicine, Pathology and Cell Biology, and Physiology, Columbia University, New York, NY 10032, USA
| | | | - Raymond B Birge
- Department of Microbiology, Biochemistry and Molecular Genetics, Rutgers University, New Jersey Medical School Cancer Center, Newark, NJ 07103, USA
| | - Ira Tabas
- Departments of Medicine, Pathology and Cell Biology, and Physiology, Columbia University, New York, NY 10032, USA.
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Abstract
Leukotrienes are powerful immune-regulating lipid mediators with established pathogenic roles in inflammatory allergic diseases of the respiratory tract - in particular, asthma and hay fever. More recent work indicates that these lipids also contribute to low-grade inflammation, a hallmark of cardiovascular, neurodegenerative, and metabolic diseases as well as cancer. Biosynthesis of leukotrienes involves oxidative metabolism of arachidonic acid and proceeds via a set of soluble and membrane enzymes that are primarily expressed by cells of myeloid origin. In activated immune cells, these enzymes assemble at the endoplasmic and perinuclear membrane, constituting a biosynthetic complex. This Review describes recent advances in our understanding of the components of the leukotriene-synthesizing enzyme machinery, emerging opportunities for pharmacological intervention, and the development of new medicines exploiting both antiinflammatory and pro-resolving mechanisms.
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45
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Hegde B, Bodduluri SR, Satpathy SR, Alghsham RS, Jala VR, Uriarte SM, Chung DH, Lawrenz MB, Haribabu B. Inflammasome-Independent Leukotriene B 4 Production Drives Crystalline Silica-Induced Sterile Inflammation. THE JOURNAL OF IMMUNOLOGY 2018; 200:3556-3567. [PMID: 29610142 DOI: 10.4049/jimmunol.1701504] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 03/09/2018] [Indexed: 12/14/2022]
Abstract
Silicosis is a lung inflammatory disease caused by chronic exposure to crystalline silica (CS). Leukotriene B4 (LTB4) plays an important role in neutrophilic inflammation, which drives silicosis and promotes lung cancer. In this study, we examined the mechanisms involved in CS-induced inflammatory pathways. Phagocytosis of CS particles is essential for the production of LTB4 and IL-1β in mouse macrophages, mast cells, and neutrophils. Phagosomes enclosing CS particles trigger the assembly of lipidosome in the cytoplasm, which is likely the primary source of CS-induced LTB4 production. Activation of the JNK pathway is essential for both CS-induced LTB4 and IL-1β production. Studies with bafilomycin-A1- and NLRP3-deficient mice revealed that LTB4 synthesis in the lipidosome is independent of inflammasome activation. Small interfering RNA knockdown and confocal microscopy studies showed that GTPases Rab5c, Rab40c along with JNK1 are essential for lipidosome formation and LTB4 production. BI-78D3, a JNK inhibitor, abrogated CS-induced neutrophilic inflammation in vivo in an air pouch model. These results highlight an inflammasome-independent and JNK activation-dependent lipidosome pathway as a regulator of LTB4 synthesis and CS-induced sterile inflammation.
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Affiliation(s)
- Bindu Hegde
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, KY 40202.,James Graham Brown Cancer Center, University of Louisville Health Sciences Center, Louisville, KY 40202; and
| | - Sobha R Bodduluri
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, KY 40202.,James Graham Brown Cancer Center, University of Louisville Health Sciences Center, Louisville, KY 40202; and
| | - Shuchismita R Satpathy
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, KY 40202.,James Graham Brown Cancer Center, University of Louisville Health Sciences Center, Louisville, KY 40202; and
| | - Ruqaih S Alghsham
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, KY 40202.,James Graham Brown Cancer Center, University of Louisville Health Sciences Center, Louisville, KY 40202; and
| | - Venkatakrishna R Jala
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, KY 40202.,James Graham Brown Cancer Center, University of Louisville Health Sciences Center, Louisville, KY 40202; and
| | - Silvia M Uriarte
- Department of Medicine, University of Louisville Health Sciences Center, Louisville, KY 40202
| | - Dong-Hoon Chung
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, KY 40202
| | - Matthew B Lawrenz
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, KY 40202
| | - Bodduluri Haribabu
- Department of Microbiology and Immunology, University of Louisville Health Sciences Center, Louisville, KY 40202; .,James Graham Brown Cancer Center, University of Louisville Health Sciences Center, Louisville, KY 40202; and
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Abstract
The lymphatic system is essential for the maintenance of tissue fluid homeostasis, gastrointestinal lipid absorption, and immune trafficking. Whereas lymphatic regeneration occurs physiologically in wound healing and tissue repair, pathological lymphangiogenesis has been implicated in a number of chronic diseases such as lymphedema, atherosclerosis, and cancer. Insight into the regulatory mechanisms of lymphangiogenesis and the manner in which uncontrolled inflammation promotes lymphatic dysfunction is urgently needed to guide the development of novel therapeutics: These would be designed to reverse lymphatic dysfunction, either primary or acquired. Recent investigation has demonstrated the mechanistic role of leukotriene B4 (LTB4) in the molecular pathogenesis of lymphedema. LTB4, a product of the innate immune response, is a constituent of the eicosanoid inflammatory mediator family of molecules that promote both physiological and pathological inflammation. Here we provide an overview of lymphatic development, the pathophysiology of lymphedema, and the role of leukotrienes in lymphedema pathogenesis.
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Affiliation(s)
- Xinguo Jiang
- VA Palo Alto Health Care System, Palo Alto, California 94304, USA.,Stanford University School of Medicine, Stanford, California 94305, USA;
| | - Mark R Nicolls
- VA Palo Alto Health Care System, Palo Alto, California 94304, USA.,Stanford University School of Medicine, Stanford, California 94305, USA;
| | - Wen Tian
- VA Palo Alto Health Care System, Palo Alto, California 94304, USA.,Stanford University School of Medicine, Stanford, California 94305, USA;
| | - Stanley G Rockson
- Stanford University School of Medicine, Stanford, California 94305, USA;
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47
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Wan M, Tang X, Stsiapanava A, Haeggström JZ. Biosynthesis of leukotriene B 4. Semin Immunol 2017; 33:3-15. [DOI: 10.1016/j.smim.2017.07.012] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 05/29/2017] [Accepted: 07/31/2017] [Indexed: 12/31/2022]
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48
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Sorgi CA, Zarini S, Martin SA, Sanchez RL, Scandiuzzi RF, Gijón MA, Guijas C, Flamand N, Murphy RC, Faccioli LH. Dormant 5-lipoxygenase in inflammatory macrophages is triggered by exogenous arachidonic acid. Sci Rep 2017; 7:10981. [PMID: 28887514 PMCID: PMC5591212 DOI: 10.1038/s41598-017-11496-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 08/25/2017] [Indexed: 11/15/2022] Open
Abstract
The differentiation of resident tissue macrophages from embryonic precursors and that of inflammatory macrophages from bone marrow cells leads to macrophage heterogeneity. Further plasticity is displayed through their ability to be polarized as subtypes M1 and M2 in a cell culture microenvironment. However, the detailed regulation of eicosanoid production and its involvement in macrophage biology remains unclear. Using a lipidomics approach, we demonstrated that eicosanoid production profiles between bone marrow-derived (BMDM) and peritoneal macrophages differed drastically. In polarized BMDMs, M1 and M2 phenotypes were distinguished by thromboxane B2, prostaglandin (PG) E2, and PGD2 production, in addition to lysophospholipid acyltransferase activity. Although Alox5 expression and the presence of 5-lipoxygenase (5-LO) protein in BMDMs was observed, the absence of leukotrienes production reflected an impairment in 5-LO activity, which could be triggered by addition of exogenous arachidonic acid (AA). The BMDM 5-LO regulatory mechanism was not responsive to PGE2/cAMP pathway modulation; however, treatment to reduce glutathione peroxidase activity increased 5-LO metabolite production after AA stimulation. Understanding the relationship between the eicosanoids pathway and macrophage biology may offer novel strategies for macrophage-associated disease therapy.
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Affiliation(s)
- Carlos A Sorgi
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-903, Brazil
| | - Simona Zarini
- Department of Pharmacology, University of Colorado Denver, Aurora, 80045, CO, USA
| | - Sarah A Martin
- Department of Pharmacology, University of Colorado Denver, Aurora, 80045, CO, USA
| | - Raphael L Sanchez
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-903, Brazil
| | - Rodrigo F Scandiuzzi
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-903, Brazil
| | - Miguel A Gijón
- Department of Pharmacology, University of Colorado Denver, Aurora, 80045, CO, USA
| | - Carlos Guijas
- Scripps Center for Metabolomics, The Scripps Research Institute, La Jolla, 92037, CA, USA
| | - Nicolas Flamand
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Département de Médecine, Faculté de Médecine, Université Laval, Quebec City, G1V 4G5, Quebec, Canada
| | - Robert C Murphy
- Department of Pharmacology, University of Colorado Denver, Aurora, 80045, CO, USA
| | - Lucia H Faccioli
- Departamento de Análises Clínicas, Toxicológicas e Bromatológicas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, 14040-903, Brazil.
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Miralda I, Uriarte SM, McLeish KR. Multiple Phenotypic Changes Define Neutrophil Priming. Front Cell Infect Microbiol 2017; 7:217. [PMID: 28611952 PMCID: PMC5447094 DOI: 10.3389/fcimb.2017.00217] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 05/11/2017] [Indexed: 12/15/2022] Open
Abstract
Exposure to pro-inflammatory cytokines, chemokines, mitochondrial contents, and bacterial and viral products induces neutrophils to transition from a basal state into a primed one, which is currently defined as an enhanced response to activating stimuli. Although, typically associated with enhanced generation of reactive oxygen species (ROS) by the NADPH oxidase, primed neutrophils show enhanced responsiveness of exocytosis, NET formation, and chemotaxis. Phenotypic changes associated with priming also include activation of a subset of functions, including adhesion, transcription, metabolism, and rate of apoptosis. This review summarizes the breadth of phenotypic changes associated with priming and reviews current knowledge of the molecular mechanisms behind those changes. We conclude that the current definition of priming is too restrictive. Priming represents a combination of enhanced responsiveness and activated functions that regulate both adaptive and innate immune responses.
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Affiliation(s)
- Irina Miralda
- Department of Microbiology, University of Louisville School of MedicineLouisville, KY, United States
| | - Silvia M Uriarte
- Department of Microbiology, University of Louisville School of MedicineLouisville, KY, United States.,Department of Medicine, University of Louisville School of MedicineLouisville, KY, United States
| | - Kenneth R McLeish
- Department of Medicine, University of Louisville School of MedicineLouisville, KY, United States.,Robley Rex VA Medical CenterLouisville, KY, United States
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50
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Ball AK, Beilstein K, Wittmann S, Sürün D, Saul MJ, Schnütgen F, Flamand N, Capelo R, Kahnt AS, Frey H, Schaefer L, Marschalek R, Häfner AK, Steinhilber D. Characterization and cellular localization of human 5-lipoxygenase and its protein isoforms 5-LOΔ13, 5-LOΔ4 and 5-LOp12. Biochim Biophys Acta Mol Cell Biol Lipids 2017; 1862:561-571. [PMID: 28257804 DOI: 10.1016/j.bbalip.2017.02.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/06/2017] [Accepted: 02/24/2017] [Indexed: 01/29/2023]
Abstract
Human 5-lipoxygenase (5-LO-WT) initiates the leukotriene (LT) biosynthesis. LTs play an important role in diseases like asthma, atherosclerosis and in many types of cancer. In this study, we investigated the 5-LO isoforms 5-LO∆13, 5-LO∆4 and 5-LOp12, lacking the exons 13, 4 or a part of exon 12, respectively. We were able to detect the mRNA of the isoforms 5-LO∆13 and 5-LOp12 in B and T cell lines as well as in primary B and T cells and monocytes. Furthermore, we found that expression of 5-LO and particularly of the 5-LO∆13 and 5-LOp12 isoforms is increased in monocytes from patients with rheumatoid arthritis and sepsis. Confocal microscopy of HEK293T cells stably transfected with tagged 5-LO-WT and/or the isoforms revealed that 5-LO-WT is localized in the nucleus whereas all isoforms are located in the cytosol. Additionally, all isoforms are catalytically inactive and do not seem to influence the specific activity of 5-LO-WT. S271A mutation in 5-LO-WT and treatment of the cells with sorbitol or KN-93/SB203580 changes the localization of the WT enzyme to the cytosol. Despite colocalization with the S271A mutant, the isoforms did not affect LT biosynthesis. Analysis of the phosphorylation pattern of 5-LO-WT and all the isoforms revealed that 5-LOp12 and 5-LO∆13 are highly phosphorylated at Ser271 and 5-LOp12 at Ser523. Furthermore, coexpression of the isoforms inhibited or stimulated 5-LO-WT expression in transiently and stably transfected HEK293T cells suggesting that the isoforms have other functions than canonical LT biosynthesis.
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Affiliation(s)
- Ann-Katrin Ball
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
| | - Kim Beilstein
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
| | - Sandra Wittmann
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
| | - Duran Sürün
- Department of Molecular Hematology, Goethe University Medical School, 60590 Frankfurt am Main, Germany
| | - Meike J Saul
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
| | - Frank Schnütgen
- Department of Molecular Hematology, Goethe University Medical School, 60590 Frankfurt am Main, Germany
| | - Nicolas Flamand
- Centre de recherche de l'IUCPQ, Département de Médecine et Faculté de Médecine, Université Laval, Québec, QC G1V 4G5, Canada
| | - Ricardo Capelo
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
| | - Astrid S Kahnt
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
| | - Helena Frey
- General Pharmacology and Toxicology, Goethe-University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, Germany
| | - Liliana Schaefer
- General Pharmacology and Toxicology, Goethe-University Frankfurt, Theodor-Stern Kai 7, 60590 Frankfurt, Germany
| | - Rolf Marschalek
- Institute of Pharmaceutical Biology, Goethe-University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
| | - Ann-Kathrin Häfner
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany.
| | - Dieter Steinhilber
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany.
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